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