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