mammalian organ system Flashcards
cell
building block of life, perform specific functions
tissues
collections of the same cells, or of multiple cell types of same origin
organs
contain several tissue types
organ systems
consist of multiple organs
- musculo-skeletal system
- primary function: movement
- secondary function: support of body, protection of organs, generate heat, calcium metabolism, haemotapoiesus
- includes bones, joints, skeletal muscle
cardiovascular system
- primary function: provide nutrition and oxygen to cells
- secondary function: transport hormones, remove CO2, transport immune cells, temperature regulation
- includes: heart, blood vessels
nervous system
- primary function: sensing environment and coordinating response
- secondary function: thinking, helps regulate many functions
- includes: brain, spinal cord, cranial and peripheral nn, ganglia
- 3 systems in one, CNS, PNS, ANS (central, peripheral, autonomic)
respiratory system
- primary function: oxygenation of blood
- secondary function: removal of CO2, controls blood pH, olfaction, vocalization, thermoregulation
- includes: nose, nasal cavity, larynx, trachea, bronchial tree, lungs, diaphragm, muscles and bones of thorax
urinary system
- primary function: removal waste products and regulation correct hydration levels
- secondary function: regulate Na+, K+, Cl- in blood, regulate blood pH, territorial marking
- includes: kidneys, ureters, bladder urethra
reproductive system
- primary function: reproduce
- secondary function: manufacture sex hormones
- includes: ovaries, uterus, cervix, vagina, vulva / testes, prostate, penis
- most important biologically
- least important in a survival sense
digestive system
- primary function: provision of nutrition to circulatory system for cell of the whole body
- secondary function: excretion waste, maintain hydration, regulate and balance essential substances, territorial marking
- includes: mouth, teeth, tongue, pharynx, oesophagus, stomach, liver, intestines, pancreas, caecum, rectum, anus
what is one of most studied systems in vet med and why
digestive system, understanding nutrition vital for production and big differences between taxonomic groups
integument system
- primary function: protect body from outside world
- secondary function: fighting and sexual selection, locomotion, territorial marking, temp regulation
- includes: skin, horns, hooves, hair
immune system
- primary function: fight foreign intrusions
- secondary function: wound repair, fight cancer
- includes: thymus, bone marrow, lymph nodes, spleen
innate immune system
complement component of immune system; macrophages, neutrophils, eosinophils, mast cells
adaptive immune system
B & T lumphocytes
endocrine system
- primary function: signalling system
- includes: glands that secrete hormones into blood; pituitary, adrenal, thyroid, parathyroid, pancreas, ovaries, testes, placenta
sensory systems
- eyes; vision balance
- ears; hearing balance
- usually dealt with as part of CNS