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59 terms

N215 Exam 1

STUDY
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Hormones released from this gland include ADH and ocytocin.
posterior pituitary
which cells of the pancreas produce insulin?
beta cells
which hormones are produced by the parathyroid gland?
only PTH
hyper secretion of this hormone results in loss of calcium from the bones and softening and spontaneous fractures of the bones
PTH
this gland is located in the cranial cavity and produces the hormone melatonin
pineal
the hormone glucagon_____.
raises blood glucose
what gland makes growth hormone?
pituitary
hypo secretion of insulin or a deficiency in insulin receptors leads to_____.
diabetes mallitus
from deep to superficial, the layers of the epidermis of the skin are ______.
basale
spinosum
granular
corny
these glands are found all over the skin except in the palms of the hands and soles of feet. produce an oily substance
sebaceous glands
this layer of the dermis is responsible for fingerprints
papillary layer
which of the following pigments is not involved in determining skin color?
white pigments in skin cells
what is true about the blood supply to the skin?
epidermis is avascular
dermis is richly vascularized
cutanous glands, hair, and nails_______.
are accessory structures of the skin etc....
this region contains abundant elastic collagen fibers.
dermis
what is the function of the coronary circulation?
provide blood supply to the heart
what is the ligamatum arteriosm?
a remnant of the ductus arteriosus
which chamber of the heart exits into the pulmonary trunk?
right ventricle
identify the ear like flaps that are attached to the top chambers of the heart
auricle
the first branch off the arch of the aorta is brachicephalic artery in both sheep and human? true or fals
truuuu
the base of the heart is located at the bottom of the heart. true of false
false
name the ridged bundles of muscle found projecting inside the right atrium.
pectinate muscles
identify the right atrioventricular valve
tricuspid valve
identify the valve located at the exit of the right ventricle.
pulmonary semilunar valve
oxygenated blood flows through the right side of the heart. true of false
false
the moderator band is found on both the right and left side of the heart. true or false
false
the inner lining of the heart
endocardium
identity the most muscular chamber
left ventricle
identify the valve found between the left atrium and left ventricle.
bicuspid valve (mitral)
what heart chamber pushes through the aortic semilunar valve?
left ventricle
name the needle like ridges of muscle lining the ventricles.
trabeculae carneae
what fibrous structure functions to anchor the atrioventricular valves in a close position?
chordae tendineae
blood on the right never mixes with blood on the left, once the hear is fully developed. true of false
true
ventricular fibrilation is______.
rapid, uncoordinated ventricular contractions
the function of the intrinsic conduction system is to______.
insures that the heart beats in a sequential and coordinated manner
how does holding the breath affect the heart rate?
heart rate decreases
the electrocardiogram (ECG/EKG) shows a record of_______.
electrical excitation of the heart
in sequential order, the components of the intrinsic conduction system, beginning at the SA node, are______.
av node, av bundle, bundle branches, purkinje fibers
the QRS complex is associated with _______.
depolarization of the ventricles
during exercise, the heart rate_____.
increases proportional to the exertion involved
bradycardia describes a heart rate of _____.
less than 60 beats/min
a person who has symptoms of paleness and chronic fatigue is suspected of having anemia. To investigate this suspicion further, it would be most helpful to measure_______.
hematocrit
a person with type AB blood receives a transfusion of type O blood. will there be a transfusion reaction? why or why not?
no, the recipient has no antibodies to antigens A and B, and therefore can receive blood from a type O donor.
platelets____.
are the smallest formed elements of blood
a patient reports to the doctor that she bruises very easily, and when she cuts herself, she has a hard time stopping bleeding. what test would be used?
coagulation time
which of the following wbc's are granulocytes?
basophils, neatrophils, eosinophils
what is true about blood typing?
type ab blood contains antigens a and b
the major function of the rbc is to______.
transport O2 and co2
the most numerous blood cells are_____.
rbc's
heart murmurs______.
often indicate problems with heart valves, can be used to diagnose failure of the heart valves to close tightly, and can be used to diagnose constricted heart valves.
venous pressure_______.
is much lower than arterial pressure
during moderate exercise_____.
heart rate and blood pressure increase
the mean arterial pressure for a patient whose blood pressure is 110/80 is______.
90 mm Hg
the first of the 2 numbers measured when taking blood pressure represents______.
systolic pressure
the first heart sound heard during the cardiac cycle is associated with_____.
closure of the AV valves
blood pressure is______.
the pressure of the blood against the blood vessel walls
if you cut yourself and blood spurts rhythmically from injury, you have probably cut______.
an artery
by taking a pulse you can determine______.
pulse rate, regularity of the pulse and strength of the pulse
heart sounds are associated with______.
turbulent blood flow, closure of av valves, and closure of semilunar valves