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Study Stack 2
Week 7-13
| Question | Answer |
|---|---|
| For a neurotransmitter to produce an inhibitory postsynaptic potential, which of the following channels must open? | Potassium and/or chloride channels |
| Stimulus-gated channels open in response to | sensory stimuli |
| When an impulse reaches a synapse | chemical transmitters are released |
| The neurotransmitter(s) that inhibit(s) the conduction of pain impulses is(are) | enkephalins |
| No impulse can be sent through a neuron | during the absolute refractory period |
| Dopamine, epinephrine, and norepinephrine are classified as | catecholamines |
| Compared with the outside of the neuron, the inside has a(n) ____ charge | negative |
| Severe depression can be caused by a deficit in certain brain synapses of | amines |
| The fastest nerve fibers in the body can conduct impulses up to approximately _____ meters per second | 130 |
| If the dorsal root ganglia of the spinal nerve were destroyed, a person would lose _____ related to that pathway | sensory perception |
| Cerebrospinal fluid circulates through the ventricles, into the central canal and _____, and is absorbed back into the blood | subarachnoid space |
| Norepinephrine is liberated at | most sympathetic postganglionic nerve endings |
| 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. |
| Impulses sent over which of the following tracts could result in voluntary movement, especially of the hands, fingers, feet, and toes of the opposite side | Lateral corticospinal |
| Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate | vagus |
| The spinal tract that is located in the side of the cord, originates in the brain, and terminates in the spinal cord is the _____ tract | lateral corticospinal |
| Audition is a function of the _____ lobe | temporal |
| Tic douloureux is a painful neuralgia of the _____ nerve | trigeminal |
| Acetylcholine can stimulate _____ receptors | nicotinic |
| The clear and potassium-rich fluid that fills the labyrinth is | endolymph |
| Movement of hair cells in the organ of Corti against the _____ membrane can stimulate nerve impulse condition | tectorial |
| The major hormone produced by the corpus luteum is | progesterone |
| Dynamic equilibrium depends on the functioning of the | crista ampullaris |
| The receptors responsible for sensing crude and persistent touch are the | Ruffini corpuscles |
| The difference between systolic pressure and diastolic pressure is called | pulse pressure |
| The mechanisms of which three hormones work together to regulate blood volume? | aldosterone, ANH, and ADH |
| _____, a natural constituent of blood, acts as an antithrombin and prevents clots from forming in vessels | Heparin |
| The term blood type refers to the type of blood cell | antigen |
| A glycoprotein hormone that is secreted to increase oxygen concentration in the tissues is | erythropoietin |
| Factors that affect the strength of myocardial contraction are called | inotropic factors |
| The movement of phagocytes from blood vessels to an inflammation site is called | diapedesis |
| Lymphocytes that kill many types of tumor cells and cells infected by different kinds of viruses are known as | natural killer cells |
| Antibodies are proteins of the family called | immunoglobulins |
| The term used to describe the volume of air exchanged during normal inspiration and expiration is | tidal volume |
| Excessive fluid in the pleural cavity would be most likely to cause | decreased vital capacity |
| Vital capacity is defined as the | maximum volume of air that can be moved into and out of the lungs during forced respiration |
| A drop in the body’s production of carbonic anhydrase would hinder the formation of | carbonic acid |
| Which blood vessel carries absorbed food from the GI tract to the liver? | Portal vein |
| The hormone that stimulates the gallbladder to release bile is | cholecystokinin |
| Glucose moves from the GI tract into the circulatory system by the process of | cotransport |
| The final product of carbohydrate digestion is a | monosaccharide |
Created by:
LeilaniSimpson