human bio final exam

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precapillary sphincters allow for anastomosis

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precapillary sphincters allow for anastomosis

true

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which of the following is considered a vein

SVC

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which of the following are atrioventicular valves

mitral and tricuspid

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capillaries are where waste products are reabsorbed

true

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which of the following are semilunar valves?

aortic and pulminary

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mcrophages are the first to arrive at the scene of an injury; after which neutropils arrive to clean up the mess

false

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a platelet plug is stronger than a forbiden plug

false

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which of the following has more smooth muscle in it because it is under high pressure

arteries

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the ___ of the heart is inferior; while the ------ of the heart is superior

apex; base

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based by percentage, which blood type is the oldest?

type O

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The ___ valve is the same thing as a mitral valve

bicuspid

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Regergitation is the same thing as a heart attack

false

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the biconvex shape of an erythrocyte allows it to fit through capillary beds (T or F)

false

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which of the following is considered an artery?

aorta

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The function of thrombocytes is to ___

clot the blood

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venules are larger than veins (T or F)

false

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the aorta comes out of the ___ of the heart

base

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Regergitation is the same thing as a heart murmur (T or F)

true

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The pulminary __ carries oxygenated blood; while the pulmanary ___

vein; artery

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The Rh factor is also known as the D antigen (T or F)

true

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when it is hot outside, deep veins allows heat loss so the body cools down (T or F)

false

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Which of the following has less smooth muscle in it because it is under a lower pressure?

veins

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__ involved a clogged arterial system, wheras __ involves damaged valves

atherosclerosis; regurgitation

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The ___ is considered the pacemaker of the heart

SA node

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The AV node is the pacemaker of the heart (T or F)

false

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the layer of vessel that comes in contact with blood is the ___

endothelium

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varicose veins and hemorrhoids represent pooled blood causing vessel distension

true

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____ causes a larger vesel lummen

vasodilation

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deep veins allow the body to heat; whereas superficial veins allow the body to __ heat

converse; lose

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Pre-capillary sphincters ___________

regulate blood flow

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when monocytes leave the blood system and enter the tissue beds, they are called macrophges (T or F)

true

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Which of the following do have a nucleus?

leukocytes

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Which of the following has a life span of 120 days?

erythrocytes

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most foregin objects going down the trachea get trapped in the left bronchus

false

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When the diaphragm flattens it moves downward

increasing the volume in the thoracic cavity

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the right lung has ___ lobes; whereas the left lung has _ two lobes

3;2

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most foreign objects in the trachea get trapped in the right bronchi

true

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the thymus is located in the mediastinum

true

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the thymus is located posterior to the sternum

true

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dealing with edema (excess fluid in the tissue beds) is a major function of the lymphatic system

true

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lymph nodes act as filters so disease organisms do not spread

true

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external gas exchange occurs in the ___

lungs

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lymphatic vessels have valves just like veins

true

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The thymus is part of the body’s defense system

true

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the diaphragm separates the abdominal and pelvic cavities

false

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The epiglottis is the space between the vocal cords

false

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the thyroid is part of the body’s defense system

false

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the ciliary escalator helps beat impurities up the trachea toward the mouth

true

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what part of the throat is behind the mouth

oropharynx

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not having a spleen does not result in any deficiency in ones immune system

true

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what part of the throat is behind the vocal cords

larngopharynx

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veins have valves but lymphatic vessels do not

false

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lymph nodes can keep a disease from spreading

true

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the left lunch has the cardiac notch

true

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surfactant is necessary to keep alveoli cells from collapsing

true

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Bronchiole have cartilage on them

false

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pseudostratified ciliated columnar cells

at least 2 of the given answers are correct

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air filled gas pockets where gas exchange occurs are called ___

aveoli

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the diaphragm separates the abdominal and pelvic cavities

false

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the glottis is open when straining to lift a heavy object

false

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tension of the ___ affects the pitch of ones voice

vocal cords

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chemical and gas exchange between blood and interstitial fluid around tissue cells occurs at the ___

capillaries

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the lymphatic system:

all these answers are correct

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ones thymus is at its maximum size at puberty

true

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lymphatic vessels start blindly in the tissue beds

true

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the adam’s apple is part of the ___

thyroid cartilage

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the spleen is located in the upper right thoracic cavity

false

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a spleen does not result in any deficiency in one’s immune system

false

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micturition is another word for

urination

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blood supply into the kidneys are via the __, while the _ drains blood from the kidneys

renal artery; renal vein

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the __ is the tube down which food flows to the stomach

esophagus

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the bladder is made up of ___ epithelium that withstands stretching

traditional

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the digestive tract has several ways of increasing absorptive surfaces. they include:

all of these are true

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the forward movement of muscle contraction is called __

peristalis

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the urethra is shorter in men than in women

false

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the ___ is the functional unit of the kidney

nephron

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deciduous teeth are

baby teeth

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the forward movement of food by muscle constriction is called __

peristalsis

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Urethras enter the bladder at oblique angles so urine cannot backflow to the kidneys

false

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Which of the following is NOT a kidney function?

elimination of carbon dioxide

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with reference to the collecting tubules: ___ is removing water from the tubules and returning it to the venous system

reabsorption

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Bile is made by the gallbladder

false

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Lacteals:

all these answers are correct

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__ arterioles carry blood To the glomerulus; whereas _ arterioles carry blood FROM the glomerulus

afferent; efferent

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