Advertisement Upgrade to remove ads

pelvis

what structure is not part of the axial skeleton

stores fat

yellow marrow does what

compact bone

type of bone that provides the greatest strength for support is

cartilage

in an embryo, the skeleton is originally made of

skeletal system

provides structure, support, and protection for internal organs

bone marrow

blood cells are produced in the

skeletal, smooth, cardiac

the three types of muscle are

lamellae

the mineral rings surrounding haversian canals are called

individual muscle fibers

the total amount of force that a muscle can exert depends on the total number of _______ _________ ________ that have been stimulated

sarcomeres shorten

which of the following happens when a skeletal muscle contracts

pull a bone

a muscle can

chemical messengers

the skin does not produce

melanin

the pigment in skin that protects from UV radiation is

keratin

a waterproof protein in the skin

epidermis

the thin outer layer of the skin is the

cardiac muscle

pumps blood through the body

ligament

holds the bones of a joint in place

extensor

straightens a joint

appendicular skeleton

includes bones in arms and legs

periosteum

tough membrane covering bone

epidermis

cell layers covering body surfaces

tendon

attaches muscle to bone

flexor

bends a joint

sarcomere

the functional unit of a muscle

joint

point where two bones meet

true

t/f: bones grow longer as new bone cells replace cartilage

true

t/f: muscle contraction is an all or nothing response

false

t/f: hair color and skin color are determined by keratin

true

t/f: flexors are muscles that cause a joint to bend; closing the joint

true

t/f: the dermis contains nervous tissue and blood vessels

false

t/f: an example of a ball and socket joint are the wrist bones

false

t/f: the haversian canals of long bones are filled with yellow marrow

true

t/f: bone is a living tissue made of cells that deposit minerals

false

t/f: moving a muscle requires three sets of muscles working in opposition

true

t/f: the distribution of melanin in the epidermis of the skin determines the color of an individual

pathogens

vaccines can be produced from dead or weakened

swelling, heat, redness

the inflammatory response consists of (3)

true

t/f: the skin is the first line of defense against pathogens

true

t/f: pathogens can be transmitted through the air

true

t/f: phagocytes attack and destroy pathogens by surrounding and eating them

false

t/f: fever interferes with the body's natural defense against pathogens

inflammatory response

which of the following is a nonspecific defense against pathogens

bacteria, viruses, worms

pathogens can be (3)

plasma cells

what would not be a participant in cellular mediated immune responses

b and t memory cells

what is not involved in nonspecific immune response

valves and skeletal muscle contractions

one way flow of fluid in lymph vessels is aided by

trapping pathogens

mucus serves as a nonspecific defense to pathogens by

true

t/f: when pathogens enter the body through a wound, they trigger an inflammatory response

true

t/f: cytotoxic t and be cells are activated by interleukin-2 which is secreted by helper t cells

true

t/f: when the body experiences a pathogen for the second time, the immune response is stronger and faster

false

t/f: fevers above 103 F can have beneficial effects when the body is defending itself against pathogens

skin

the ______ acts as a barrier to keep foreign organisms and viruses out of the body

helper t

interleukin 2 is produced by _______ cells

natural killer

immune surveillance by _______ ______ cells is one of the body's most potent defenses against cancer

interleukin 1

an alarm signal is emitted by macrophages in the form of a protein called ________ which activates helper t cells

antibodies

b cells produce proteins called _____________ that can mark pathogens for destruction

veins

vessels that carry blood towards the heart are called

slightly elastic walls

an artery has

deoxygenated

blood entering the right atrium is

refilling of the ventricles

diastolic pressure is caused by

capillaries, arterioles, venules

_____, _______, and _______ are the blood vessels that connect the arteries to the veins

aorta

blood from the left ventricle leaves the heart through the

left atrium

oxygenated blood from the lungs is received by the

plasma

donor blood does not contain antibodies because it has no

respiratory gases

red blood cells transport

hemoglobin

the iron containing molecule in red blood cells is called

atrioventricular valves

the valves located between the atria and ventricles are known as the

pulmonary vein

what blood vessel carries oxygenated blood

right atrium

the sionatrial node is located in the

sa node

the natural pacemaker of the heart is called the

platelets

incomplete cells that form blood clots are known as

true

t/f: the lower chambers of the heart are called the ventricles

false

t/f: when agglutination was present you marked a - on your lab report

true

t/f: arteries carry blood away from the heart

false

t/f: if a blood vessel has valves it probably is an artery

false

t/f: erythrocytes help defend the body from disease

true

t/f: red blood cells have a short life span; they live for about 120 days

false

t/f: the pulmonary artery carries oxygenated blood

true

t/f: the tricuspid valve is located between the right atrium and right ventricle

false

t/f: the systemic circulatory system carries blood to the lungs and back to the heart

true

t/f: blood is composed of both solids and liquids

aorta

main artery leaving the left ventricle going to the body

blood pressure

measurement of the pressure of blood on walls of arteries

capillary

smallest blood vessel in the body; one cell thick

diastole

heartbeat phase when ventricles relax and blood flows from atria

pacemaker

regulates the contraction of the heart

pulmonary circulation

the movement of blood between the heart and the lungs

sl valves

valves that separate ventricles and arteries

septum

wall dividing oxygenated and deoxygenated blood in the heart

systemic circulation

movement of blood between the heart and body

vein

vessels that carry blood towards the heart

trap incoming bacteria and other foreign debris

what is the role of mucus in the nasal cavity

toward the throat/mouth to be swallowed or spat out

cilia of the trachea that beat continually propel contaminated mucus

epiglottis

the flap of elastic cartilage that protects food from entering the larynx when swallowing is the

exchange the air

the respiratory conducting passageways perform all of the following functions except

diffusion

exchange of both oxygen and carbon dioxide through the respiratory membrane occurs by

high blood co2 level

nerve cells that trigger an increase in breathing rate are stimulated by

speak

following the removal of the larynx, a person would be unable to

trachea

the _____ is a long straight tube that carries air from the back of the throat to the lungs.

bronchi

when oxygen enters the respiratory system, what is the next structure to which it travels immediately upon leaving the trachea

pancreas

which of the following is not an organ found in the urinary system

lungs and skin

the kidneys are aided in the excretion of fluids by the

bowman's capsule

the enlarged cup shaped closed end of the renal tubule that completely surrounds the glomerulus is called the

proximal convoluted tubule, loop of henle, distal convoluted tubule

starting from the glomerular capsule, the correct order of the renal tubule region is

urea

what is not a substance typically reabsorbed by the tubules under normal healthy conditions

external sphincter

the voluntarily controlled sphincter found in the urinary system is called the

excretion

___ is the process of removing metabolic wastes from the body

urethra

urine is transported from the bladder to the outside of the body by the

salts, amino acids, glucose, urea

the filtrate removed from the blood by the kidneys might contain (4)

collecting duct

which of the following is not part of the nephron.

trachea

the mucus lined windpipe that extends from the pharynx to the bronchi is the

carbon dioxide

the most important stimulus for breathing in a healthy person is the body's need to rid itself of the blood gas called

bronchioles

the smallest conducting passageways of the lungs are called

hydrogen

the kidneys can help maintain a rising blood pH by secreting ______ ions

internal respiration

gas exchange between the blood and tissue cells is called

epiglottis

the flap of elastic cartilage that moves when swallowing is the

internal sphincter

the involuntary sphincter that keeps the urethra closed when urine is not being passed is called the

renal cortex

there are three regions of the kidney; the outermost region is known as the

alveoli

the air sacs of the lungs are called

diaphragm

the inspiratory muscles that contract so we can inspire air are the rib muscles and

ureter

tube that drains urine from the kidney to the bladder

trachea

windpipe

external sphincter

a muscle that you have learned voluntary control over

excretion

the removal of metabolic wastes from the body within the lungs

diaphragm

a sheet of muscle that controls inspiration

larynx

voice box

bladder

muscular sac suitable for temporary urine storage

bronchi

the trachea branches into these tubes

pharynx

throat

alveoli

air sacs

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set