exercise 2
Terms
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- Integumentary organs
- epidermal and dermal regions; cutaneous sense organs and glands
- integumentary function
- * protects deeper organs for mechanical, chemical, and bacterial injury and dessication(drying out) * excretes salt and urea * aids in regulation of body temperature * produces vitamin D
- major components of the skeletal system
- bones cartilages, tendons. ligaments, and joints
- functions of the skeletal system
- ody support and protections of internal organs * provides levers for muscular action * cavities provide a site for blood cell formation
- muscular system organs
- muscles attached to the skeleton
- function of the muscular system
- primary function is t contract or short; in doing so, skeletal muscles all locomotion * generates heat
- organs of the nervous system
- brain spinal cord, nerves, sensory receptors
- functions of the nervous system
- * allows the body to detect chnges in its internal and external environment to respond to such information by activating appropriate muscles or glands *helps maintain homeostasis of the body via rapid transmission of electrical signals
- endocrine system major organs
- *pituitary, thymus, thyroid, parathryroid, adrenal, and pineal glands; ovaries, testes, and pancreas
- functions of the endocrine system
- * helps maintain body homeostasis, promotes growth and development; produces chemical "messengers" (hormones) that travel in the blood to exert their effects on various target organs of the body
- cardiovascular system orgns
- heart, blood vessels, and blood
- functions of the carviovascular system
- * primarily a transport system that carries blood containing oxygen, carbon dioxide, nutrients, wastes, ions, hormones, and oher substances to and rom te tissue cells where exchanges are made; blood is propelled through the blood vessels by the pumping ac
- Lymphatic system organs
- lymphatic vessels, lymph nodes, spleen, thymus, tonsils, and scattered collections of lymphoid tissues
- lymphatic system function
- *picks up fluid leaked fromt he blood vessels and returns it to the bood * cleanses blood o pathogens and oher debris * houses lymphocyes that act vi the immune response to protect the body from forign substances (antigens)
- Respiratory organs
- nasal passages, pharynx, larynx, trachea, bronchi, and lungs
- Respiratory functions
- keeps the blood continously suppied with oxygen while removing carbon dioxide * conributes to the acid-base balacne o f the blood via it carbonic acid-bicarbonat buffer system
- digestive organse
- oral cavity, esophagus, stomach, small and large intestines, and accessory structures
- digestive system functions
- * breaks down ingesed foods to minute particles, which can be absorbed by the blood for delivery to the body cells * undigested residue removed from the body as feces
- urinary system components
- kidneys, ureers, bladder, urethra
- urinary system functions
- * rids the body of nitrogen-containing wastes (urea, uric acid, and ammonia), which result from the breakdown of proteis and nucleic acids by the body *maintains water, electrolyte, and acid-base balance o blood
- Reproductive organs
- Male: testes, protate gland, scrotum, penis, and duct system, which carries sperm to the body exterior Female: ovaries, uterin tubes, uterus, mammary glands, vagina
- functions of the reproductive systems
- Male: provide germ cells for perpetuation of the species Female: provide germ cells; he female uterus houses the developing fetus till birth; mammary glands provide nutriion for the infant