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38 Cards in this Set
- Front
- Back
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Inflammation, production of interferon and ingestion of pathogens by phagocytes are nonspecific cellular responses by what? |
The internal aspect of the innate immune system wh |
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What occurs in the cardiac cycle if the impulse triggered at the sinoatrial node never reaches the purkinje fibers of the heart? |
The ventricles will not contract |
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What does the pulmonary artery do? |
Takes oxygen poor blood away from the right ventricle and delivers it to the right and left lung |
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What results from the blockage of blood flow to cardiac muscle tissue? |
Myocardial infarction |
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Contraction of the atria is caused by what? |
The impulse of the sinoatrial node |
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What does the pulmonary vein do? |
Takes oxygen rich blood away from the lungs and delivers it to the left atrium |
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What does the aorta do? |
Takes oxygen rich blood away from the left ventricle to be distributed to the rest of the body |
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What does the inferior and superior vena cava do? |
Delivers oxygen poor blood from the body to the right atrium |
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What is atherosclerosis? |
A buildup of plaque in blood vessels that reduces the flow of blood through a vessel |
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What’s the link between damaged villi and malnutrition? |
Damaged villi decrease the nutrient absorbing surface area in the GI tract |
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What organ is responsible for the majority of the chemical digestion and absorption of nutrients in the digestive system? |
Small intestine |
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What do motor neurons do? |
Carry efferent impulses from the CNS to muscles |
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What do sensory neurons do? |
Carry afferent impulses |
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When does contraction occur? |
When the thin actin filaments slide past the thicker myosin filaments causing the sarcomere unit to shorten or contract |
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Which nerve structure transmits nerve impulses to other cells? |
Axon |
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What does a dendrite do? |
Receives signals from other neurons |
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What is the cell body? |
The cell body of a neuron is the area where the nucleus is located and receives signals |
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What are glial cells? |
Supporting cells, including cells that nourish and insulate nerve cells |
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The endocrine system is what? |
A collection of ductless glands that produce a slowly initiating but prolonged response on other body systems |
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What’s the hypothalamus? |
A section of the brain that serves as an integration center between the endocrine and nervous system |
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What’s the thymus? |
A lymphoid organ that produces T cells |
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What’s the thymus? |
A lymphoid organ that produces T cells |
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What’s the pineal gland? |
A small gland near the center of the brain that secretes melatonin |
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What’s the parathyroid gland? |
Endocrine glands in the neck that produce PTH |
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What gland has an exocrine function and aids in the regulation of blood glucose? |
The pancreas. It had as exocrine function in the digestive system and an endocrine gland in relation to blood glucose regulation |
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What’s the adrenal gland? |
Glands above the kidney that produce hormones to regulate HR, BP and other functions |
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What’s the thyroid? |
The gland in the neck that secretes hormones that regulate growth, development and metabolic rate |
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What’s the pituitary gland? |
The endocrine gland at the base of the brain that controls growth and development |
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What’s the pituitary gland? |
The endocrine gland at the base of the brain that controls growth and development |
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What’s the dermis? |
The middle layer of skin made of CT |
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What’s the hypodermis? |
The deepest layer of the skin |
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What’s the epidermis? |
The outer layer of skin made of epithelial tissue |
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What’s keratin? |
A tough protein made by epithelial keratinocytes |
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When is vitamin D produced? |
Produced by the skin when a cholesterol based precursor is modified by the presence of UV radiation |
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What’s renin? |
An enzyme released by the kidneys when reduced BP is detected |
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Which bone cells perform mineral resorption? |
Osteoclasts, they liberate calcium from bone-bound reserves and the mineral resorption removes calcium from bone so it can enter the bloodstream |
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What are osteocytes? |
Star shaped cells that maintain bone and are able to sense physical stress |
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What are osteons? |
Cylindrical structures that compromise compact bone |
