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Physiology Stack
Week 7-13 Review
| Question | Answer |
|---|---|
| Movement of the membrane potential away from zero (below the usual RMP) is called: | Hyperpolarization |
| The membrane potential maintained by a nonconducting neuron’s plasma membrane is called the _____ membrane potential. | Resting |
| A membrane that exhibits a membrane potential is said to be: | Polarized |
| Which membrane receptor acts to directly change ion permeability when stimulated? | Gated-Channel Receptor |
| The tiny bulge at the end of a terminal branch of a presynaptic neuron’s axon is called a(n): | Synaptic Knob |
| There are two types of synapses—the electrical synapse and the __________ synapse. | Chemical |
| The neurotransmitter(s) that inhibit(s) the conduction of pain impulses is(are): | Enkephalins |
| Stimulus-gated channels open in response to: | Sensory Stimuli |
| No impulse can be sent through a neuron: | During the absolute refractory period |
| Parasympathetic stimulation has an effect on the: | Sweat glands |
| A _____ is a skeletal muscle or group of muscles that receives motor axons from a given spinal nerve. | Myotome |
| Each skin surface area supplied by sensory fibers of a given spinal nerve is a: | Dermatone |
| What goes wrong in the function of insulin in type 2 diabetes? | The cells don't respond to insulin like they should |
| What should you avoid doing in the middle of your sleep cycle that would lower melantonin? | Turning on the lights |
| The olfactory tract carries impulses associated with: | Smell |
| The somatic senses enable us to detact sensation, including: | Touch, Temperature, Pain |
| Sensory impulses ending in what part of the CNS trigger imprecise or "crude" sensation awareness? | Thalamus |
| The type of cells that secrete ACTH are: | Corticotrophs |
| If you slammed your finger in a car door, it would stimulate _______ pain fibers. | Acute |
| Neutrophils are highly mobile and phagocytic. They migrate out of blood vessels and into tissue spaces. This process is called: | Diapedesis |
| The heart has its own special covering; a loose-fitting inextensible sac called the: | Pericardium |
| Mechanical devices that permit the flow of blood in one direction only are called: | Valves |
| After blood leaves the lungs and returns to the heart, it enters the: | Left Atrium |
| The internal iliac artery supplies blood to the: | Pelvis |
| A type of abnormal heart sound that may signify incomplete closing of the vales is: | Heart murmur |
| The_______ drains much of the superficial leg and foot. | Great Saphenous Vein |
| The internal iliac artery supplies blood to the: | Pelvis |
| The difference between systolic pressure and diastolic pressure is called: | Pulse pressure |
| Circulatory shock caused by a drop in the amount of blood in the circulatory system is called _____ shock. | Hypovolemic |
| During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? | It flows into the inferior vena cava |
| A hematocrit of 56% would be an indication of: | Polycythemia |
| Cardiac output is determined by: | Stroke volume and Heart rate |
| The term blood type refers to the type of blood cell: | Antigen |
| Lymph is filtered by the: | Lymph nodes |
| The purpose of the lymphatic system is to: | Fight against infection |
| The T cell is considered: | The Communicator |
| Millions of B cells release millions of: | Antibodies |
| The lymph pressure gradient is established by: | Breathing movements and Skeletal muscle contractions |
| Memory cells become: | Plasma cells when exposed to an antigen |
| The ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is called: | Adaptive Immunity |
| The exact amount of oxygen in blood depends mainly on the amount of: | Hemoglobin |
| Which term refers to the volume of inspired air that actually reaches, or "ventilates," the alveoli? | Alveoli Ventilation |
| Hyperpnea means an: | Increase in breathing |
| The ability of the lungs and thorax to stretch is referred to as: | Compliance |
| An increase in carbon dioxide in the blood causes: | A drop in pH in the blood |
| Standard atmospheric pressure is _____ mm Hg | 760 mmHg |
| About 98.5% of the oxygen carried by systemic arterial blood is attached to: | Hemoglobin |
| 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% |
| The chemical process in which a compound unites with water and then splits into simpler compounds is called: | Hydrolysis |
| During which stage of swallowing is there a risk of food entering respiratory pathways? | Oropharyngeal |
| Because fats are insoluble in water, they must be: | Emulsified |
| Saliva contains the enzyme: | Amylase |
| What percentage of the blood flow comes from the hepatic portal system? | 80% |
Created by:
bethnp
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