organ systems Flashcards
what are the body’s major organ systems?
- the nervous system
- the endocrine system
- respiratory system
- circulatory/cardiovascular system
- digestive system
- the cardiovascular system
- muscular system
- urinary system
- skeletal system
- reproductive system
- integratory system
- lymphatic system
integumentary system
hair, nails, accessory organs- skin, sweat glands, sebaceous glands.
Helps protect underlying tissues help regulate blood temperature, houses a variety of sensory receptors, and synthesize certain products.
accessory organs
assists other organs
skeletal system
Consists of bones, cartilages, and ligaments
Provides a framework and protective shields for softer tissues, attachment for muscles, act with muscles when body parts move, skeletal tissues also produce blood cells and store inorganic salts
muscular system
muscles(organs) contract and pull ends closer together, provides forces that move body parts, maintain posture, and the main source of body heat.
nervous system
control and adjust organ functions, helping maintain homeostasis.
organs included- brain, spinal cord, nerves, sensor organs.
nerve cells within these organs communicate with each other, muscles, and glands to contract or secrete products by sending electrochemical signals called “nerve impulses”. some are specialized sensory receptors of internal and external stimuli.
sensor organs
eyes, ears, nose, tongue, skin
endocrine system
All the glands that secrete/produce chemical messengers called “hormones” that travel away in body fluids.
Particular hormones affect a particular group of cells, “target cells”. These effects are over a long time period.
Pituitary, thyroid, parathyroid, pancreas, adrenal glands, ovaries, testes, pineal gland, thymus.
parathyroid
a
thyroid
parathyroid
thymus
a
adrenal glands
a
pituitary
a
pancreas
a
testes, ovaries
a
thymus
a
