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AWK9&10

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TermDefinition
a commissure connecting left and right cerebral hemispheres. corpus callosum
a gland that secretes melatonin. The pineal gland
a gland that secretes corticosteroids. adrenal gland
the structure that is the boundary between the external and middle ear. Tympanic Membrane (Eardrum)
an organ that secretes hormones controlling blood sugar levels pancreas
eye- anterior segment, which is filled with aqueous humor. anterior chamber
following the sensation of touch from the skin up the spinal cord to the brain, what is the final destination (the blue area) called? Primary somatosensory cortex
a gland that regulates circadian rhythms. pineal gland
ear - the structure that is important in equalizing air pressure on both sides of the eardrum Eustachian tube
an immune organ that also secretes hormones. Thymus
a gland that secretes a hormone controlling basal metabolic rate. Thyroid
eye - the transparent portion of the fibrous layer. The cornea
ear - the structure that contains receptors for rotational acceleration semicircular canal
the region of the retina that contains only cones and provides maximal visual acuity fovea centralis
the brain region that secretes releasing hormones and inhibiting hormones. hypothalamus
"master gland" that secretes at least nine hormones. The pituitary gland
Largest purely endocrine gland in the body. thyroid gland
Gel-like structure embedded with the tips of cochlear hair cells. tectorial membrane
Endolymph is made infundibulum.
Fluid filling the posterior segment of the eye. vitreous humor
Pyramid-shaped gland consisting of neural crest-derived cells and endocrine secretory cells. adrenal gland
Membrane attached to the stapes. oval window
What are the parts of the flow of taste sensation along the gustatory pathway to the cerebral cortex? vagus nerve, solitary nucleus of the medulla oblongata, thalamic nuclei
Bony labyrinth structure containing the utricle and saccule. vestibule
description of the spiral organ of Corti? The "hairs" of the receptor cells are embedded in the tectorial membrane. High-frequency sounds stimulate hair cells at the basal end of the basilar membrane. The spiral organ is part of the cochlear duct, which equals the scala media.
The basilar membrane supports the spiral organ.
Region of the adrenal cortex that secretes DHEA. Region of the adrenal cortex that secretes DHEA.
Pancreatic cell type that produces insulin. beta cells
Which of the following minerals is essential for the formation of thyroid hormone? iodine
Transparent mucous membrane covering the inner surface of the eyelid. conjunctiva
Class of hormones secreted during chronic stress that depress immune function. glucocorticoids
Endolymph-filled structure containing receptors for hearing. cochlear duct
Region of the hypophysis that contains secretory endocrine cells derived from the oral ectoderm adenohypophysis
Action of the hormone produced by the heart increases the excretion of sodium in the urine.
The anatomical stalk of the pituitary is also known as infundibulum.
Transparent structure of the eye containing regularly aligned collagen fibers. cornea
Which endocrine gland stores enough of its hormone extracellularly to last several months? the thyroid
Gustatory cells are located in all of the following areas on the posterior wall of the pharynx. on the fungiform papillae of the anterior tongue. on the inner surface of the cheeks.
Receptors for hearing are located in the cochlear duct.
Hormone that inhibits osteoclast activity in children. calcitonin
Which of the following areas has the highest concentration of cones? the fovea centralis
The nerve carrying taste information from the anterior two-thirds of the tongue is the facial.
Endocrine gland of the thorax that is also important in immune function. thymus gland
Melanin-containing layer of the eye's vascular tunic. choroid
Which of the following endocrine glands develops primarily from the endoderm of the pharynx? thyroid and parathyroids
Cardiac output is determined by stroke volume and heart rate.
the longest vein in the body. great saphenous vein
the layer common to all blood vessels regardless of their size. Endothelial cells
Which are the two baroreceptors that are located near the heart? aortic baroreceptors and carotid baroreceptors
Starling’s law of the heart states that, within limits, the longer, or more stretched, the heart fibers are at the beginning of the contraction, the stronger the contraction.
The difference between systolic pressure and diastolic pressure is called pulse pressure.
The vagus is said to act as a “brake” on the heart. This situation is called vagal inhibition.
The localized pressure gradient needed to maintain blood flow in a tissue is called perfusion pressure.
Which two factors promote the return of venous blood to the heart? blood-pumping action of respirations and skeletal muscle contractions
formed elements of the blood that are important in blood clotting. Platelets
the formed element of the blood that develops into phagocytic cells macrophages.
Inhibition of sympathetic vasoconstrictor impulses is considered a major mechanism of vasodilation.
Which division of the autonomic nervous system sends fibers to the heart? sympathetic and parasympathetic
The normal ECG is composed of all of the following P wave QRS wave T wave
The brachiocephalic vein drains blood from the head, neck, and upper extremity.
Mechanical devices that permit the flow of blood in one direction only are called valves.
Which of the following is not a formed element found in the blood? plasma
A decrease in the amount of white blood cells is called leukopenia.
The outermost layer of the larger blood vessels is the tunica adventitia.
The internal iliac artery supplies blood to the pelvis.
From which vessels do myocardial cells receive blood? coronary arteries
Blood flow from the heart through blood vessels to all parts of the body and back to the heart is referred to as _____ circulation. systemic
granulocytes neutrophils. eosinophils. basophils.
The _____ drains much of the superficial leg and foot. great saphenous vein
The four structures that compose the conduction system of the heart are the SA node, AV node, AV bundle, and Purkinje fibers.
_____ is used to determine the volume percentage of red blood cells in whole blood. Hematocrit
The normal cardiac impulse that initiates mechanical contraction of the heart arises in the SA node.
Which mature cell has no nucleus, mitochondria, or ribosomes? Erythrocyte
Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: hematopoietic stem cells.
After blood leaves the lungs and returns to the heart, it enters the left atrium.
The heart valves that are located where the trunk of the pulmonary artery joins the right ventricle and where the aorta joins the left ventricle are called semilunar valves.
The term blood type refers to the type of blood cell antigen.
Atria are often called _____ because they receive blood from vessels called veins. receiving chambers
The heart has its own special covering, a loose-fitting inextensible sac called the pericardium.
The structural components of the circulatory system include the: heart and blood vessels.
Which types of arteries are also called conducting arteries and include the aorta? elastic arteries
A glycoprotein hormone that is secreted to increase oxygen concentration in the tissues is erythropoietin.
During fetal circulation, what opening in the septum, between the right and left atria, directs most of the blood so that it bypasses the fetal lungs? foramen ovale
In _____, blood moves from veins to other veins or arteries to other arteries without passing through an intervening capillary network. vascular anastomoses
The molecule that makes up 95% of the dry weight of each red blood cell and is responsible for the red pigment is hemoglobin.
Created by: aarellano123
 

 



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