Organ Systems Flashcards
What are the major organs in the Integumentary system?
Skin, hair, nails; cutaneous sense organs and glands
What are the major organs in the Skeletal system?
Bones, cartilages, tendons, ligaments, and joints
What are the major organs in the muscular system?
Muscles attached to the skeleton
What are the major organs in the Nervous system?
Brain, spinal cord, nerves, and sensory receptors
What are the major organs in the Endocrine system?
Pituitary, thymus, thyroid, parathyroid, adrenal, and pineal glands; ovaries, testes, and pancreas
What are the major organs in the Cardiovascular system?
Heart and blood vessels
What are the major organs in the Lymphatic system?
Lymphatic vessels, lymph nodes, spleen, and thymus
What are the major organs in the Respiratory system?
Nasal cavity, pharynx, larynx, trachea, bronchi, and lungs
What are the major organs in the Digestive system?
Oral cavity, pharynx, esophagus, stomach, small and large intestines, and accessory structures (teeth, salivary glands, liver, and pancreas)
What are the major organs in the Urinary system?
Kidneys, ureters, bladder, and urethra
What are the major organs in the Reproductive system?
Male: testes, prostate gland, scrotum, penis, and duct system which carries sperm to body exterior
Female: ovaries, uterine tubes, uterus, mammary glands, and vagina
What is the purpose of the Integumentary system?
Protects deeper organs from mechanical, chemical, and bacterial injury, and from drying out
Excretes salts and urea
Aids in regulation of body temperature
Produces vitamin D
What is the purpose of the Skeletal system?
Body support and protection of internal organs
Provides levers for muscular action
Cavities provide a site for blood cell formation
Bones store minerals
What is the purpose of the Muscular system?
Primary function = contract or shorten, allows locomotion, grasping and manipulation of environment, and facial expressions
Generates heat
What is the purpose of the Nervous system?
Allows body to detect changes in its internal and external environment and to respond to such information by activating appropriate muscles or glands
Helps maintain homeostasis of the body via rapid transmission of electrical signals
What is the purpose of the Endocrine system?
Helps Maintain homeostasis, promotes growth and development; produces chemical messengers called hormones that travel in the blood to exert their effect(s) on various target organs of the body
What is the purpose of the Cardiovascular system?
Primary: transport system that carries blood containing oxygen, carbon dioxide, nutrients, wastes, ions, hormones, and other substances to and from the tissue cells where exchanges are made; blood is propelled through the blood vessels by the pumping action of the heart
Antibodies and other protein molecules in blood protect the body
What is the purpose of the Lymphatic system?
Picks up fluid leaked from the blood vessels and returns it to the blood
Cleanses blood of pathogens and other debris
Houses lymphocytes that act via the immune response to protect the body from foreign substances
What is the purpose of the Respiratory system?
Keeps the blood continuously supplied with oxygen while removing carbon dioxide
Contributes to the acid-base balance of the blood
What is the purpose of the Digestive system?
Breaks down ingested foods to smaller particles, which can be absorbed into the blood for delivery to the body cells
Undirected residue removed from the body as feces
What is the purpose of the Urinary system?
Rids the body of nitrogen-containing wastes including urea, Uris acid, and ammonia, which result from the breakdown of proteins and nuclei acids
Maintains water, electrolyte, and acid-base balance of blood
What is the purpose of the Reproductive system?
Provides gametes called sperm for perpetuation of species
Provides gametes called eggs; the uterus houses the developing fetus until birth; mammary glands provide nutrition for the infant
Where is the Pituitary gland and what does it do?
“Master Gland” at the base of the brain
Produces hormones that regulate growth and reproductive development
Manages the thyroid and adrenal glands and gonads
Manages kidneys, uterus, and breasts
Where is the Thymus and what does it do?
Part of the lymphatic system, in the chest between the lungs (inferior to Thyroid)
Makes T-cells (white blood cells) that fight infection
Where is the Thyroid and what does it do?
Above clavicle on the trachea
An endocrine gland that produces hormones to control metabolism
Where is the Parathyroid and what does it do?
Pea-sized glands located behind the thyroid
Main job is to produce PTH (parathyroid hormone) that controls calcium in the blood
Where are the Adrenal Glands and what do they do?
Also known as suprarenal (Supra-Renal)
Glands on top of each of the two kidneys
Produces hormones that regulate
- Metabolism
- Immune system
- Blood pressure
- Response to stress
- Development of sexual characteristics
Where is the Pineal gland and what does it do?
Gland in the brain
Secretes melatonin which helps control the circadian cycle of sleep and wakefulness
Where is the Pancreas and what does it do?
Under the Stomach/Liver
Makes substances that help with digestion
Makes hormones that control sugar in the bloodstream
Where is the Spleen and what does it do?
Around the left side of the stomach
Part of the lymphatic system, it stores blood, filters it to remove waste, and makes white blood cells and antibodies to fight infections
Where is the Pharynx and what does it do?
Superior to the larynx (back of throat)
Supports respiratory and digestive systems
Where is the Larynx and what does it do?
Inferior to pharynx
The “voice box”
To trachea
Where is the Trachea and what does it do?
Inferior to larynx, anterior to esophagus
Connects larynx to bronchi
Where are the Bronchi and what do they do?
Two tubes carrying air from the trachea to the lungs