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Lecture test 3

Helps to study the structures of the human body

When the path ways of nociceptors from the skin and from the internal organs converge, resulting the brain being unable to determine where the arriving signals are coming from, its called _______________ Referred pain
The structure that prevents foreign objects from passing beyond the front of the eye is the ________________ Conjunctival sac
The parasympathetic division of the autonomic nervous system ____________________ Constricts the pupil of the eye
Which of the following nerve fibers of the autonomic nervous system are adrenergic? Most sympathetic postganglionic fibers
The change in rate of rotation (or angular acceleration of the body is detected by the _________________ Semicircular ducts
While the nervous system causes muscles to contract or glands to secrete, the endocrine system ________________________ Causes changes in the metabolic activities in cells
The triangular middle chamber of the cochlea ( which is filled with endolymph and which contains the organ of Corti) is called the ____________________ Cochlear duct
The cupula is a gelatinous structure found in a semicircular canal of the inner ear. Most of the semicircular canal is about the same width, but the cupula is found in an enlarged portion called the _______________ Ampulla
The ___________________ is the upper chamber of the cochlea. It's filled with perilymph, and it runs from the oval window to the apex Scala vestibuli
The posterior lobe of the pituitary gland is called ____________________ The neurohypophysis
Where do we find the olfactory mucosa? On the roof (or ceiling) of the nasal cavity
A hormone that is a lipid that is synthesized from cholesterol is a _________________ hormone Steroid
Fluid in the space within the membranous labyrinth is called ______________________ Endolymph
The division of the autonomic nervous system that we associate with the fight or flight response, that increases alertness, heart rate, blood pressure, and pulmonary airflow, is the ____________ division Sympathetic
Most of the taste buds sensitive to salty substances are located _______________________ On the side of the tongue
_______________ is a gland found in front of, and on either side of the voicebox The thyroid gland
The fovea centralis is located where? The location in the eye that has the keenest vision, because of its high concentration of cone cells
The central portion of the bony labyrinth is called the ________________ Vestibule
To reduce the force of vibrations, a muscle called the ______________ is connected to the malleus Tensor Tympani
Some receptors have nerve fibers that wrap around hair follicles to monitor movements of hair. These are called______________ Hair receptors
The thickness, or resistance to flow, of blood is referred to as its _______________ Viscosity
After about 120 days, _______________ become trapped in (and are destroyed by) the spleen Erythrocytes
What does the inner ear not contain? Ciliary body
The otolithic membrane is resistant to changes in movement because it supports microscopic crystals of calcium carbonate called ________________________ Otoliths
_______________ are cells that begins as pluripotent stem cells in bone marrow Both B lymphocytes and t lymphocytes
Somesthetic projections pathways are pathways followed by sensory signals to their ultimate destinations in the CNS. Most somesthetic signals travel by way of ____________________ Three neurons
The ____________ is the area monitored by a single sensory neuron. If two stimuli are simultaneously applied here, the brain cannot perceive them as separate Receptive field
Cells of the eye that cannot distinguish colors from one another, but which detect variations in lightness and darkness are called __________________ Rod cells
________________ are receptors wrap around special muscle fibers or contact the end of muscle fibers to detect stretch in a muscle and trigger a variety of skeletal reflexes Muscle spindles
Vibration of the ____________ cause vibration of the malleus Tympanic membrane
The intensity or _______________ of sound is measured in decibels Loudness
Hormones of the adrenal cortex that stimulate the growth of pubic and axillary hair are called _________________ Sex steroids
The auditory canal is a tube that extends from the __________ to the tympanic membrane Auricle
Platelets reduce blood flow by _____________________ Secreting vasoconstrictors, sticking together to form plugs, secreting procoagulants
The _________________ produces a hormone that influences the rate at which the body consumes calories Thyroid gland
Follicle-stimulating hormone and luteinizing hormone are both under the control of __________________ Gonadotropin-releasing hormone
Some parasympathetic fibers of the autonomic nervous system by way of which nerve? Oculomotor nerve
The Auditory tube connects the nasopharynx to the tympanic cavity. Because of this connection, swallowing equalizes pressure on both sides of the ___________ Tympanic membrane
The ___________________ papillae are found primarily on the tip and side of the tongue and are shaped somewhat like mushrooms. Each has about three taste buds on its apex. Fungiform
The opening into which the _________ fits is the oval window Stapes
Which of the following is considered a general sense Pain
Which of the following is a result of stimulation of the sympathetic nervous system Glucose is released from the liver
_____________ are receptors for deep pressure, stretch, and high-frequency vibration that consist of layers of schwann cells surrounding on or more sensory nerve fibers. They're found in places like the pancreas, hands, and feet Lamellated corpuscles
_____________ cells migrate from the bone marrow to the cortex of the thymus where they achieve immunocompetence and undergo selection T lymphocytes
____________ are receptors that respond to physical forces on cells, caused by touch pressure, tension or vibration. They include the organs of hearing, and many receptors, Mechanoreceptors
____________ cells are shaped somewhat like bowling pins Olfactory
________ are leukocytes that are the rarest of the white blood cells. They secrete histamine or heparine, and they have dark violet (dark blue) staining granules Basophils
What system reabsorbs the tissues fluids that are not pulled back into the blood through capillaries and venules? The lymphatic system
Which of the following is a function of transport proteins? They produce hormones from being broken down by enzymes
Which of the following is an effect of the parasympathetic division? Increased activity of the salivary gland
The parasympathetic division of the autonomic nervous system has nerve fibers that originate in the _____________ region of the spinal cord Brain and spinal cord
Blood calcium levels ( levels of calcium in the blood) are decreased by hormones released by the __________________ Thyroid Gland
The utricle is sensitive to ___________ acceleration Horizontal
Postganglionic neurons of the autonomic nervous system innervate the heart. What kind of neurons innervate the adrenal medulla? Preganglionic
____________ are the most abundant plasma solutes by weight Proteins
The term for achieving sharp focus with the eye (through making adjustments in the shape of the lens) is called __________________ Accommodation
The two hormones transported from the hypothalamus to the posterior pituitary are oxytocin and antiduretic hormone Prolactin
Olfactory receptor cells are sensitive to chemical stimuli, and they transmit the sensation of olfaction to the _________________ Cerebral cortex
Insulin secretion rises during and immediately after a meal which helps stimulate cells to absorb nutrients and store or metabolize them. Insulin is produced by the _______________ Pancreas
Cells in the blood that are known for carrying oxygen and carbon dioxide are called _____________________ Erythrocytes
The sensation of gustation is sent to the cerebral cortex from ____________________ Taste buds
The mixed endocrine and exocrine glands that secretes insulin is the ____________________ Pancreas
The _________________ is responsible for unconscious, automatic, stereotyped responses to stimulation that is involve receptors and effectors Autonomic nervous system
The transparent fluid that fills the space anterior to the lens of the eye (but behind the cornea) is called the ___________________ Aqueous humor
Created by: mar2769



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