Human Body Systems Flashcards: 11 Organ Systems, Organs & Functions
Study 105 cards on organization levels, 11 organ systems, representative organs, core functions, and homeostasis. This model counts integumentary separately and combines lymphatic/immune.
Tentang dek ini
Human Body Systems Flashcards: 11 Organ Systems, Organs & Functions
Build a practical overview of the human body before moving into regional anatomy. These 105 English flashcards start with cells, tissues, organs, organ systems, and homeostasis, then cover the main function and representative structures of each system.
The 11-system model
Anatomy resources do not all group the systems the same way. NCI SEER Training's introductory overview lists ten systems because it does not count the integumentary system separately. This deck uses a common introductory 11-system convention: integumentary; skeletal; muscular; nervous; endocrine; cardiovascular; lymphatic/immune; respiratory; digestive; urinary; and reproductive. It counts integumentary separately and combines lymphatic and immune functions.
What the cards practice
- Recall each system's main job.
- Connect representative organs and structures with their system or role.
- Use a limited set of bounded reverse prompts where producing the system or organ is genuinely useful.
- Explain a few clear homeostasis links, including movement, gas transport, fat absorption, temperature control, blood composition, sensation, and digestive propulsion.
The deck does not mechanically reverse every fact or treat shared organs as belonging exclusively to one system. The pancreas, gonads, diaphragm, skin, liver, and other cross-system structures are described by the role being reviewed.
Learning order
Organization levels come first. The cards then make repeated passes through all 11 systems: main functions before structures, and structures before selected reverse recall. Each system returns only after ten unrelated cards, so similar prompts do not cue one another. The final ten cards connect systems through homeostasis.
Scope
This is an introductory anatomy and physiology overview. It excludes diagnosis, treatment, clinical advice, detailed pathology, medical procedures, image-identification practice, exhaustive organ lists, and advanced pathway detail. It supports study but does not replace a full course, lab, or medical guidance.
Facts were checked primarily against the NCI SEER Training anatomy modules, with focused cross-checks from NIAMS on skin, NIAID on the immune system, and NIDDK overviews of digestion and the urinary tract.
The prompts, answers, sequence, metadata, and generated cover were independently created from common knowledge and original work. No competitor cards, textbook prose, source figures, logos, or third-party media were copied.
The Common knowledge · CC0 1.0 label applies to the original wording, organization, metadata, and cover to the extent applicable rights exist. It does not claim ownership of anatomical facts.
Source review date: August 31, 2026.
Kad dalam dek ini
Kad 1
Soalan
Why can two anatomy resources give different counts for the body's organ systems?
Jawapan
Classification conventions vary. This deck uses 11 systems by counting the integumentary system separately and combining lymphatic and immune functions.
Kad 2
Soalan
What is the usual order of biological organization from simplest to most complex in the human body?
Jawapan
Cells → tissues → organs → organ systems → organism.
Kad 3
Soalan
What is a cell in the body's organization hierarchy?
Jawapan
The basic living unit of the body.
Kad 4
Soalan
What is a tissue?
Jawapan
A group of similar cells, together with their surrounding material, organized to perform a shared function.
Kad 5
Soalan
What is an organ?
Jawapan
A structure made of multiple tissue types working together for one or more specific functions.
Kad 6
Soalan
What is an organ system?
Jawapan
A group of organs and related structures that cooperate in major body functions.
Kad 7
Soalan
What does homeostasis mean in introductory physiology?
Jawapan
Maintaining a relatively stable internal environment while conditions inside or outside the body change.
Kad 8
Soalan
What is the integumentary system's main job?
Jawapan
It forms the body's outer barrier, limits water loss, helps regulate temperature, and provides sensation.
Kad 9
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What are the skeletal system's main jobs?
Jawapan
Support and protect the body, provide levers for movement, store minerals, and house blood-forming marrow.
Kad 10
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What is the muscular system's main job?
Jawapan
It produces body movement through muscle contraction and also supports posture, joint stability, and heat production.
Kad 11
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What is the nervous system's main job?
Jawapan
It detects changes, integrates information, and coordinates rapid responses through sensory, processing, and motor activity.
Kad 12
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What is the endocrine system's main job?
Jawapan
It uses hormones to regulate processes such as growth, metabolism, development, reproduction, and long-term homeostasis.
Kad 13
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What is the cardiovascular system's main job?
Jawapan
It circulates blood to transport gases, nutrients, hormones, heat, cells, and wastes around the body.
Kad 14
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What are the lymphatic/immune system's main jobs in this deck's combined model?
Jawapan
It returns excess tissue fluid to the blood, supports immune defense, and carries absorbed fats from the small intestine.
Kad 15
Soalan
What is the respiratory system's main job?
Jawapan
It brings oxygen into contact with the blood and removes carbon dioxide through gas exchange.
Kad 16
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What is the digestive system's main job?
Jawapan
It breaks food into absorbable components, absorbs nutrients and water, and eliminates material that was not digested.
Kad 17
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What is the urinary system's main job?
Jawapan
It removes wastes in urine and regulates body-fluid volume, electrolytes, and acid-base balance.
Kad 18
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What is the reproductive system's main job?
Jawapan
It produces gametes and reproductive hormones and provides structures that support fertilization and, in the female system, development before birth.
Kad 19
Soalan
Which organ system includes the skin?
Jawapan
The integumentary system.
Kad 20
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Which organ system includes bones?
Jawapan
The skeletal system.
Kad 21
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In the conventional organ-system model, what structures make up the muscular system?
Jawapan
Primarily skeletal muscles and their associated tendons. Smooth and cardiac muscle tissue also drives movement inside other organ systems.
Kad 22
Soalan
Which structures make up the central nervous system?
Jawapan
The brain and spinal cord.
Kad 23
Soalan
How do endocrine glands release hormones?
Jawapan
They release hormones into the surrounding fluid and blood rather than through ducts to a surface.
Kad 24
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What does the heart do in the cardiovascular system?
Jawapan
It pumps blood through the pulmonary and systemic circuits.
Kad 25
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What is lymph?
Jawapan
Interstitial fluid after it enters lymphatic capillaries and begins moving through lymphatic vessels.
Kad 26
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What route does inhaled air follow from the nose toward the gas-exchange surfaces?
Jawapan
Nasal cavity → pharynx → larynx → trachea → bronchi → smaller airways → alveoli.
Kad 27
Soalan
What is the gastrointestinal tract?
Jawapan
A continuous muscular tube from the mouth to the anus that includes the esophagus, stomach, small intestine, and large intestine.
Kad 28
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Which four structures form the urinary tract?
Jawapan
The kidneys, ureters, urinary bladder, and urethra.
Kad 29
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What are the gonads, and what do they produce?
Jawapan
The ovaries and testes. They produce gametes and reproductive hormones.
Kad 30
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Which skin layer is the outer protective barrier?
Jawapan
The epidermis.
Kad 31
Soalan
What is cartilage's main role in the skeletal system?
Jawapan
It provides flexible support and smooth, low-friction surfaces at many joints.
Kad 32
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What does a tendon connect?
Jawapan
Muscle to bone.
Kad 33
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What structures make up the peripheral nervous system?
Jawapan
Nerves, ganglia, and sensory endings outside the brain and spinal cord.
Kad 34
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What is the pituitary gland's broad endocrine role?
Jawapan
It releases hormones that regulate several other endocrine glands and body functions.
Kad 35
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In what direction do arteries carry blood?
Jawapan
Away from the heart.
Kad 36
Soalan
What do lymph nodes do?
Jawapan
They filter lymph and serve as meeting points where immune cells sample material and coordinate responses.
Kad 37
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What are alveoli?
Jawapan
Tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged with the blood.
Kad 38
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What is the esophagus's digestive role?
Jawapan
It transports swallowed material from the pharynx to the stomach.
Kad 39
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What do the kidneys do?
Jawapan
They filter blood, remove wastes and excess substances into urine, and regulate water, electrolytes, and acid-base balance.
Kad 40
Soalan
What do the ovaries produce?
Jawapan
Oocytes, commonly called egg cells, and hormones including estrogens and progesterone.
Kad 41
Soalan
Which skin layer contains most skin blood vessels, sensory endings, hair follicles, and glands?
Jawapan
The dermis.
Kad 42
Soalan
What does a ligament connect?
Jawapan
Bone to bone, helping stabilize a joint.
Kad 43
Soalan
What makes skeletal muscle suited for moving the skeleton?
Jawapan
It contracts under voluntary control and pulls on bones through tendons.
Kad 44
Soalan
What do sensory receptors contribute to the nervous system?
Jawapan
They detect changes inside or outside the body and convert them into signals the nervous system can process.
Kad 45
Soalan
What is the thyroid gland's broad endocrine role?
Jawapan
It releases hormones that help regulate metabolic rate, growth, and development.
Kad 46
Soalan
In what direction do veins carry blood?
Jawapan
Toward the heart.
Kad 47
Soalan
What is the spleen's lymphatic/immune role?
Jawapan
It filters blood, removes aging blood cells, and supports immune responses to material carried in the bloodstream.
Kad 48
Soalan
What is the trachea's respiratory role?
Jawapan
It conducts air from the larynx toward the bronchi and helps keep the airway open.
Kad 49
Soalan
What is the stomach's main digestive role?
Jawapan
It stores and mixes food while beginning substantial chemical digestion of proteins.
Kad 50
Soalan
What do the ureters do?
Jawapan
They carry urine from the kidneys to the urinary bladder.
Kad 51
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What do the testes produce?
Jawapan
Sperm cells and hormones, especially testosterone.
Kad 52
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How do sweat glands help regulate body temperature?
Jawapan
They release sweat; evaporation from the skin removes heat.
Kad 53
Soalan
What is red bone marrow's main role?
Jawapan
It produces blood cells, including red blood cells, many white blood cells, and platelets.
105 kad
Human Body Systems Flashcards: 11 Organ Systems, Organs & Functions
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Kad 54
Soalan
What does smooth muscle do in the walls of hollow organs and blood vessels?
Jawapan
Its involuntary contractions move contents through organs or adjust a vessel's diameter.
Kad 55
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What is a neuron's basic job?
Jawapan
To receive, process, and transmit information using electrical and chemical signals.
Kad 56
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What is the broad endocrine role of the parathyroid glands?
Jawapan
They release parathyroid hormone, a key regulator of calcium levels in the blood.
Kad 57
Soalan
What is the main job of capillaries?
Jawapan
They provide thin-walled exchange sites between blood and surrounding tissues.
Kad 58
Soalan
What is the thymus's immune role?
Jawapan
It is where T lymphocytes mature.
Kad 59
Soalan
What do the bronchi do?
Jawapan
They carry air from the trachea into the lungs and branch into progressively smaller airways.
Kad 60
Soalan
What is the small intestine's main digestive role?
Jawapan
It completes most chemical digestion and is the main site where nutrients are absorbed.
Kad 61
Soalan
What is the urinary bladder's main role?
Jawapan
It stores urine until urination.
Kad 62
Soalan
What do the uterine tubes do?
Jawapan
They transport an oocyte from an ovary toward the uterus and are the usual site of fertilization.
Kad 63
Soalan
What roles do hair and hair follicles serve in the integumentary system?
Jawapan
They contribute to protection and sensation; follicles also help renew skin after minor injury.
Kad 64
Soalan
How do the axial and appendicular skeletons differ?
Jawapan
The axial skeleton forms the body's central axis; the appendicular skeleton includes the limbs and the girdles that attach them.
Kad 65
Soalan
Where is cardiac muscle found?
Jawapan
In the wall of the heart, where it contracts involuntarily to pump blood.
Kad 66
Soalan
Why can the nervous system coordinate rapid responses?
Jawapan
It sends fast electrical signals along neurons and uses chemical signals across synapses.
Kad 67
Soalan
What is the broad endocrine role of the adrenal glands?
Jawapan
They release hormones involved in stress responses, metabolism, salt balance, and blood-pressure regulation.
Kad 68
Soalan
Why is blood considered part of the cardiovascular system?
Jawapan
It is the circulating transport tissue moved through the heart and blood vessels.
Kad 69
Soalan
What immune role do the tonsils serve?
Jawapan
They sample material entering through the mouth and nose and help start immune responses.
Kad 70
Soalan
How does the diaphragm support the respiratory system?
Jawapan
Its contraction enlarges the thoracic cavity, drawing air into the lungs. It is skeletal muscle working in ventilation.
Kad 71
Soalan
What is the large intestine's main digestive role?
Jawapan
It absorbs water and electrolytes and compacts the remaining material into feces.
Kad 72
Soalan
What does the urethra do?
Jawapan
It carries urine from the bladder to the outside of the body.
Kad 73
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What is the uterus's main reproductive role?
Jawapan
It receives an implanted embryo and supports development before birth.
Kad 74
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What do nails contribute to the integumentary system?
Jawapan
They protect the tips of fingers and toes and provide a firm counter-surface for fine grasping.
Kad 75
Soalan
Which skeletal structures protect the brain, spinal cord, heart, and lungs?
Jawapan
The skull protects the brain, vertebrae protect the spinal cord, and the rib cage helps protect the heart and lungs.
Kad 76
Soalan
How does skeletal muscle contribute to posture and body temperature?
Jawapan
Ongoing small contractions stabilize posture, while muscle activity releases heat.
Kad 77
Soalan
How do the central and peripheral nervous systems differ?
Jawapan
The central nervous system is the brain and spinal cord; the peripheral system connects them with the rest of the body.
Kad 78
Soalan
What do the pancreatic islets contribute to the endocrine system?
Jawapan
They release hormones, including insulin and glucagon, that help regulate blood glucose.
Kad 79
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How do pulmonary and systemic circulation differ?
Jawapan
Pulmonary circulation moves blood between the heart and lungs; systemic circulation moves it between the heart and the rest of the body.
Kad 80
Soalan
What do intestinal lacteals absorb?
Jawapan
Dietary fats and fat-soluble vitamins from the small intestine into the lymphatic circulation.
Kad 81
Soalan
What is external respiration?
Jawapan
The exchange of oxygen and carbon dioxide between air in the lungs and blood in pulmonary capillaries.
Kad 82
Soalan
Which major accessory organs add secretions to the digestive tract?
Jawapan
The salivary glands, liver, gallbladder, and pancreas.
Kad 83
Soalan
How do the kidneys help keep body fluids stable?
Jawapan
They adjust how much water, electrolytes, acids, and bases leave the body in urine.
Kad 84
Soalan
What is the epididymis's reproductive role?
Jawapan
It is the coiled duct where sperm mature and are stored before entering the ductus deferens.
Kad 85
Soalan
Which organ system includes hair, nails, sweat glands, and oil glands?
Jawapan
The integumentary system.
Kad 86
Soalan
Which organ system stores most of the body's calcium?
Jawapan
The skeletal system, mainly in the mineral matrix of bone.
Kad 87
Soalan
Which organ system produces most visible body movement through contraction?
Jawapan
The muscular system, working with the skeleton and nervous system.
Kad 88
Soalan
Which organ system coordinates rapid sensory and motor responses?
Jawapan
The nervous system.
Kad 89
Soalan
Which organs have both reproductive and endocrine roles?
Jawapan
The ovaries and testes: they produce gametes for the reproductive system and hormones for endocrine signaling.
Kad 90
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Which organ system consists of the heart, blood, and a closed network of vessels?
Jawapan
The cardiovascular system.
Kad 91
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Which organ system returns excess interstitial fluid to the blood and includes lymph nodes?
Jawapan
The lymphatic/immune system.
Kad 92
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Which organ system removes carbon dioxide and thereby helps regulate blood pH?
Jawapan
The respiratory system.
Kad 93
Soalan
Why are the liver, gallbladder, and pancreas called accessory digestive organs?
Jawapan
Food does not pass through them, but their secretions support digestion in the gastrointestinal tract.
Kad 94
Soalan
Which urinary organ stores urine before it leaves the body?
Jawapan
The urinary bladder.
Kad 95
Soalan
Which reproductive organ supports an implanted embryo and fetal development?
Jawapan
The uterus.
Kad 96
Soalan
How do the skeletal and muscular systems work together to produce movement?
Jawapan
Skeletal muscles contract and pull on bones, which act as levers across joints.
Kad 97
Soalan
How do the respiratory and cardiovascular systems cooperate in gas transport?
Jawapan
The respiratory system exchanges gases in the lungs; the cardiovascular system carries oxygen to tissues and returns carbon dioxide to the lungs.
Kad 98
Soalan
How do the nervous and endocrine systems differ in body control?
Jawapan
The nervous system usually sends fast, targeted signals; the endocrine system sends hormones through the blood for generally slower, longer-lasting effects.
Kad 99
Soalan
How do the digestive and lymphatic systems cooperate in fat absorption?
Jawapan
Lacteals in small-intestinal villi absorb dietary fats and carry them into the lymphatic circulation.
Kad 100
Soalan
How do the integumentary and muscular systems help regulate body temperature?
Jawapan
Skin promotes heat loss through sweating and blood-flow changes, while muscle contraction produces heat.
Kad 101
Soalan
How does the urinary system support cardiovascular homeostasis?
Jawapan
By adjusting water and electrolyte excretion, the kidneys help regulate blood volume, composition, and pressure.
Kad 102
Soalan
How do the endocrine and reproductive systems cooperate?
Jawapan
Hormones regulate reproductive development and function, while the gonads produce both gametes and hormones.
Kad 103
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How do the skeletal and lymphatic/immune systems connect through bone marrow?
Jawapan
Red bone marrow produces blood cells, including white blood cells that take part in immune defense.
Kad 104
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How do the integumentary and nervous systems cooperate in sensation?
Jawapan
Receptors in the skin detect touch, temperature, pressure, and potentially harmful stimuli, then sensory nerves carry those signals toward the central nervous system.
Kad 105
Soalan
How do the muscular and digestive systems cooperate to move food?
Jawapan
Smooth muscle in the digestive tract produces coordinated contractions that propel and mix its contents.
105 kad
Human Body Systems Flashcards: 11 Organ Systems, Organs & Functions
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