Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Joy Fulton
Physiology Week 7-13
| Question | Answer |
|---|---|
| When current leaps across an insulating myelin sheath from node to node, the type of impulse conduction is called: | saltatory conduction. |
| A synapse consists of: | a synaptic knob. a synaptic cleft. the plasma membrane of a postsynaptic neuron. *All* |
| The fastest nerve fibers in the body can conduct an impulse that is how much faster than the slowest fibers in the body? | Almost 300 times faster |
| Blood vessels in both digestive organs and skeletal muscles are dilated by sympathetic stimulation. | True |
| How does a dually innervated autonomic effector differ from a singly innervated autonomic effector? | A dually innervated effector receives input from both sympathetic and parasympathetic pathways. A singly innervated autonomic effector receives input from only the sympathetic division. |
| The vomiting reflex is mediated by the: | Medulla |
| The two-point discrimination test can be used to measure: | the sensitivity of the skin in various parts of the body. |
| Which of the following is a function of glucagon? | Tends to increase blood glucose concentrations |
| Clearness or sharpness of visual perception is known as: | visual acuity |
| All of the following are true statements except: | aspirin produces some of its effects by increasing PGE synthesis. |
| The chemoreceptors in the carotid bodies are particularly sensitive to: | hypercapnia |
| A glycoprotein hormone that is secreted to increase oxygen concentration in the tissues is | erythropoietin |
| Platelets play an important role in | blood clotting |
| Which protein interferes with the ability of viruses to cause disease? | interferon |
| The ingestion and destruction of microorganisms or other small particles is called | phagocytosis |
| Which antibody is synthesized by immature B cells and then inserted into their plasma membranes? | immunoglobulin M |
| External respiration can be defined as: | -the exchange of gases between the lung and the blood capillaries in the lung. & -pulmonary ventilation. |
| By the time the blood leaves the lung capillaries to return to the heart, what percentage of the blood’s hemoglobin has united with oxygen? | 97% |
| Ciliated cells lining the respiratory tract: | help move the mucus blanket toward the pharynx. |
| Internal respiration can be defined as: | the exchange of gases between the blood capillaries and the tissue cells. |
| Which blood vessel carries absorbed food from the GI tract to the liver? | Portal vein |
| Which phase(s) of gastric secretion is(are) stimulated by the sight, taste, and smell of food? | Cephalic phase |
| Which of the following is not true of enzymes? | They change chemically and are in the end products of the reaction |
Created by:
Ojoy29
Popular Physiology sets