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Rweza week 14

Physiology week 7-13

QuestionAnswer
The difference in electrical charge between the inside and outside of a membrane is called the membrane potential. True
The tiny bulge at the end of a terminal branch of a presynaptic neuron’s axon is called a(n) synaptic knob.
Masses of lymphoid tissue located in a protective ring under the mucous membranes in the mouth and the back of the throat are called tonsils
Pyrogen molecules trigger the fever response by promoting the production of prostaglandins.
During their residence in the thymus, pre-T cells develop into _____, cells that proliferate as rapidly as any in the body. thymocytes
Because T cells attack pathogens more directly, T-cell immune mechanisms are classified as _____ immunity. cell-mediated
The primary organ of the lymphatic system is the thymus.
A right shift of the oxygen-hemoglobin dissociation curve due to increased partial pressure of carbon dioxide is also known as the Bohr effect.
The presentation of an antigen by an antigen-presenting cell activates the T cell. The cell then divides repeatedly to form a clone of identical sensitized T cells that form effector T cells and memory cells.
The ingestion and destruction of microorganisms or other small particles is called phagocytosis.
The lymphatic system is made up of lymphatic vessels where lymph flows in only one direction towards the heart
The vagus is said to act as a “brake” on the heart. This situation is called vagal inhibition.
Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: hematopoietic stem cells.
_____ is used to determine the volume percentage of red blood cells in whole blood. Hematocrit
The greatest pressure drop is in the ____________ which has muscle fibers that expand and contract change diameters. arterioles
The type of cells that secrete ACTH are: corticotrophs.
Created by: Rweza
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