N215 Exam 1

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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

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