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XR 103
chapter 14
Question | Answer |
---|---|
anatomy | the structure of the body |
physiology | the function of the body |
pathology | the study of disease, which causes abnormal changes in the structure or function of body tissues and organs |
what are the 6 levels of structural organization of the human body | chemical level cellular level tissue level organ level systemic level body as a whole |
cells | the smallest units of all living things |
what are the 3 main parts of a cell | plasma membrane cytoplasm nucleus |
what are the 4 main types of tissues | epithelial connective muscle nervous |
function of epithelial tissues | to protect the underlying tissue |
function of connective tissue | to hold together tissues and organs; also makes up the structure of bone, cartilage, and fat |
function of muscle tissue | functions to produce movement |
function of nervous tissue | functions to conduct electric impulses, providing rapid communication between body structures and control of body functions |
the largest and most complex units of the body | the organs |
how many major organ systems are there? | 11 |
what are the 11 major organ systems? | integumentary muscular nervous endocrine circulatory lymphatic respiratory digestive urinary reproductive skeletal |
what is the integumentary systeme | the skin ALSO INCLUDES: hair, teeth, and nails |
what is the muscular system | consists of voluntary muscles, which control the movements of the skeleton and are under conscious control, AND involuntary muscles, which function to produce movements of organs. |
what is the nervous system | consists of the brain, the spinal cord, and the nerves |
what is included in the CNS (central nervous system)? | the brain and spinal cord |
what is the peripheral nervous system (PNS) ? | the nerves that carry information between the CNS and the PNS |
what is the FUNCTION of the nervous system? | communication, integration, and control of body functions, and recognition of stimuli |
what is a stimuli? | an agent that "stimulates" such as light, heat, pressure, and sound. |
what makes up the endocrine system? | glands that secret special chemicals called hormones |
the circulatory system is aka what? | the cardiovascular system |
what makes up the circulatory system? | the heart and the blood vessels |
what are the 3 types of blood vessels? | arteries veins capillaries |
what is the function of an artery? | to carry blood AWAY from the heart |
what is the function of a vein? | to carry blood BACK to the heart |
what is the function of a capillary? | to provide oxygen and nutrition to the cells |
what is the function of the heart? | to provide a pumping action to keep blood flowing throughout the circulatory system. |
what is the function of the lymphatic system? | to provide the fluid called lymph that surrounds the cells and serves to move fluid and certain large molecules from the cells to the circulatory |
what does the lymphatic system consist of? | lymph nodes, lymph vessels, the spleen, tonsils, and the thymus gland |
what is the function of the respiratory system? | to transfer oxygen from the air to the blood |
what does the respiratory system consist of? | breathing passages of the body; nose, mouth, pharynx, trachea, bronchi, and the lungs |
what is the function of the digestive system? | to move and digest the food that we eat |
what is contained in the digestive system? | mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, anal canal |
what is the function of the urinary system? | to eliminate the excess fluid and the waste products of cellular activity from the body |
what is contained in the urinary system? | kidneys, ureters, bladder and urethra |
what is the reproductive system? | functions to provide survival of the human race, |
what does the reproductive system consist of? | male: scrotum, and penis, and internal testesvulva, vagina, and internally the eovaries female: |
what is the function of the skeletal system? | to provide a rigid frame work for the body |
how many bones in the skeletal system? | 206 |
what is contained in the skeletal system? | 206 bones, cartilage, ligaments, and tendons |