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Studystack2
W1-14 Physiology
| The motor end plate refers to: | the area of a muscle that receives the neurotransmitter from a motor nerve |
| Calcium binds to ________ which begins the process of contraction in a Skeletal muscle | Troponin |
| The condition where skeletal muscle is in rigor or is unable to relax is due to lack of: | ATP |
| Cardiac output is equal to heart rate multiplied by | Stroke volume |
| Outward force operating at a capillary is from | Blood pressure |
| As blood pH decreases from 7 to 5 the O2 dissociation curve will shift | To the left |
| Aldosterone when secreted in higher amounts causes us to: | reabsorb more sodium in the blood and lose less in the urine |
| The different cone types vary in that they: | respond to different wavelengths of light |
| A motor unit is | a motor neuron and the muscle fibers it controls |
| which skeletal muscle fibers generate greater force? | Fast-twitch fibers |
| which closes first after ventricular contraction occurs | The AV valves |
| The most accurate definition of artery is a vessel that | transports blood away from the heart |
| the rapid depolarization phase of the action potentials of myocardial cells is due to which ions? | Na+ only |
| which is not considered to be a primary function of the respiratory system? | Regulation of pH balance |
| blood pressure sounds due to turbulent flow are named the | korotkoff sounds |
| Normally, bone loss will begin to exceed bone gain between the ages of _____ years. | 35 and 40 |
| The humerus articulates proximally with the | scapula. |
| A person with a fractured patella would expect discomfort in the: | knee. |
| Hematopoiesis is carried out in the: | red bone marrow. |
| The ulna articulates proximally with the: | humerus. |
| After the age of 50, the density of bone: | decreases slowly because of a shift in the remodeling activity. |
| Before childbirth, the symphysis pubis softens. | True |
| Which membrane receptor acts to directly change ion permeability when stimulated? | Gated-channel receptor |
| The active transport mechanism in the plasma membrane that transports sodium and potassium ions in opposite directions and at different rates is the | sodium-potassium pump. |
| The tiny bulge at the end of a terminal branch of a presynaptic neuron's axon is called a(n) | synaptic knob. |
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ElJefe