Bio 207 CSULB Exam study guide 2024 latest update already graded A+.

What is physiology? Physiology is the study of the human body and biological function What is homeostasis? Homeostasis is the maintenance of internal environment How does negative feedback work? Positive feedback? Negative feedback is the opposite initial change in a regulated variable;reduce output Positive feedback is activity increasing and reinforces initial stimulus Integumentary system (hair, skin, nails, sweat glands) -protects the body from the external environment -produces vitamin D -retains water -regulates body temp Skeletal system (bones, joints- framwork of body) -supports the body -protects internal organs'-provides leverage for movement -produces blood cells -stores calcium salts endocrine system (pineal gland, hypothalamus, pituitary gland, thyroid gland, thymus gland, adrenal glands, pancreas, ovaries, testes) -regulates body funct. -regulates the funt. of muscles, glands and other tissues through the secretion of chemicals called hormones muscular system (skeletal muscles) -produces movement -controls body openings -generates heat nervous system (brain, spinal cord, nerves) -regulates body funct. -provides for sensation, movement, automatic funct. and higher mental funct. via nerve impluses -communication thru body -not under voluntary control lymphatic system (tonsils, lymph nodes, thymus, spleen, lymphatic vessels) -returns excess tissue fluid to the cardiovascular system -provides immunity cardiovascular system (blood, vessels, heart) -pumps and delivers oxygen-poor blood to the lungs and oxygen-rich blood to the tissues -removes wastes from the tissues -transports cells, nutrients, and other substances -carries water, o2, nutrients respiratory system (nasal cavity, pharynx, larynx, trachea, lungs) -delivers oxygen to the blood -removes carbon dioxide from the body -maintains the acid-base balance of the blood digestive system (mouth, salivary glands, esophagus, liver, stomach, gailbladder, pancreas, large intestine, small intestine) -digests food -absorbs nutrients into the blood -removes food waste -regulates fluid, electrolyte, and acid-base balance urinary system (kidneys, ureters, urinary bladder, urethra) -removes metabolic wastes from the blood -regulates fluid, electrolyte, and acid-base balance -stimulates blood cell production reproductive system: female (mammary glands, uterine tube, ovary, uterus, vagina) -produces and transports eggs -site of fetal development, fetal nourishment, childbirth, and lactation -secretes hormones -sexual function reproductive system: male (prostate glands, ductus deferens, testis, penis) -produces and transports sperm -secretes hormones -sexual function Which organ systems help maintain temperature? Which protect? Which help you move? Maintain temperature= nervous system Protect= integumentary system Move= muscular system What happens to homeostasis with negative feedback? With positive feedback? Give one example of each type of feedback Homeostasis with negative feedback with be