Term
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Definition
| The anterior lobe of the pituitary gland; it secretes the anterior pituitary hormones such as growth hormones, thyrotrophin, and others adenohypophy'eal. consisting of distal, intermediate and infundibular parts and secreting many hormones, including gonadotropin, proactin, and somatotrophin |
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Term
| hypothalamic-Pituitary Portal System |
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Definition
| A portal system is a specialized arrangement of blood vessels in which tow capillary beds are located in series, one after the other |
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Definition
| the posterior (or neural) lobe of the pituitary gland, which stores oxytocin and vasopressin, neurohypophysical--having a rich supply nerve fibers and releasing oxytocin and vasopressin |
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Definition
| which are hormones that regulate the secretion of other hormones. A trophic hormone can be stimulating hormone, which are hormones that regulate the secretion of other hormones, or inhibiting hormone, which decreases the secretion of another hormone |
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Term
| Adrenocorticotrophic Hormone |
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Definition
| trophic hormone secreted from the anterior pituitary that stimulates secretion of glucocorticoids from the adrenal cortex |
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Definition
| is the amount of daily energy expended by animals at rest. Rest is defined as existing in a nautrally temperate environment while in the post-absorptive state |
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Definition
| A peptide hormone secreted by Alpha cells of the pancreas; promotes metabolic processes of the post absorptive state |
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Term
| Gonadotropin Releasing Hormone |
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Definition
| two hormones, follicle stimulating hormone (FHS) and luteinzing hormone (LH) that are secreted by the anterior pituitary and regulate gonadal function in either sex |
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Definition
| a depolarization of the motor end plate of a skeletal muscle fiber caused by acetylcholine binding to nicotinic cholinegic receptors |
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Term
| Excitation-Contraction Coupling |
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Definition
| in a muscle cell, the sequence of events that links the actin potential to the contration |
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Definition
| smooth muscle lacking gap junctions, thus each fiber acts a unit |
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Definition
| The synapse between a motor neuron and a skeletal muscle cell |
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Definition
| the fundamental repeating units that make up myofibrils |
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Term
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Definition
| modified smooth endoplasmic reticulum in muscle cells that surrounds the myofibrils and stores calcium |
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Term
| Single-Unit Smooth Muscle |
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Definition
| Smooth muscle with gap junctions linking the cells together so they function as a unit |
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Definition
| structures that transmit action potentials from the sarcolemma from the sarcoplasmic reticulum |
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Definition
| Part of the conduction system of the heart located near the tricuspid valve |
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Definition
| A series of mechanical and electrical events occurring within the heart during a single beat |
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Definition
| the period of ventricular relaxation during a cardia cycel |
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Definition
| specialized junctions between cardiac muscle cells that contain both demosomes and gap junctions |
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Definition
| the portion of the vasculature that encompasses all the blood vessels within the lungs and those connecting the lungs with the heart |
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Definition
| A region in the wall of the upper right atrium wher pacemaker cells are concentrated; normally determines the heart rate |
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Definition
| The portion of the vasculature that encompasses all the body's blood vessels, except those belonging to the pulmonary circuit. |
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Definition
| the period of ventricular contraction during a cardiac cycle |
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