Fundamentals Of Anatomy And Physiology - D203 581 Correctly Answered Questions Latest Update

external respiration {Ans: oxygen is inhaled into the lungs, and carbon dioxide is exhaled out of the lungs in a process called gas exchange}photoreceptors {Ans: a sensory receptor that responds to light. Stimulus: Light (needed for vision) Location: Eyes}myelin sheath {Ans: the lipid layer around the axon of a neuron that allows nerve impulses to travel more rapidly down the axon}Protozoa {Ans: Single-celled organisms with a nucleus. Example of sickness: Malaria (plasmodium parasite spread by mosquitos). Symptoms: Fever, chills, achiness, fatigue}outer layer and inner layer of adrenal glands {Ans: outer layer known as the adrenal cortex; inner layer called the adrenal medulla}Autonomic Nervous System {Ans: Controls involuntary actions. Think 'automatic'. Controls involuntary functions like digestion, blood pressure, and heart rate. Responsible for all actions that happen inside body that occur without your control.}cardiac cycle {Ans: the performance of the human heart from the ending of one heartbeat to the beginning of the next, consisting of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, following a period of robust contraction and pumping of blood, dubbed systole}What causes goosebumps? {Ans: arrector pili motor muscles/ sympathetic response. low