Membranes
This type of membrane lines body cavities that open to the outside, like the mouth and nose.
mucous membranes
This is the outermost layer of the epidermis, made up of dead, keratinized cells.
stratum corneum
A contraction where the muscle changes length (shortens or lengthens) while maintaining tension.
Isotonic contraction
Movement of a bone around its longitudinal axis.
rotation
This upper chamber of the heart receives oxygen-poor blood from the body.
right atrium
This slippery membrane surrounds organs like the lungs and heart to reduce friction.
serous membrane
This pigment produced by melanocytes helps protect the skin from UV damage.
melanin
Which phase in an isotonic contraction involved muscle lengthening?
eccentric phase
What connective tissue surrounds a single, internal muscle fiber?
endomysium
After passing through the tricuspid valve, blood flows into this chamber.
right ventricle
This membrane produces fluid found in joints, helping them move smoothly.
synovial membrane
These tiny muscles are attached to hair follicles and cause "goosebumps" when they contract.
arrector pili muscles
Which muscle raises, retracts and rotates the scapula?
trapezius
the antagonist to the hamstrings must be the
quadriceps
This artery carries deoxygenated blood from the heart to the lungs.
pulmonary artery
Which of the following best describes the function of synovial fluid?
a) Provides oxygen to the muscles during exercise
b) Transports nutrients to the spinal cord
c) Regulates blood pressure in the cardiovascular system
d) Lubricates and nourishes joints
d) lubricates and nourishes joints
What do the letters of ABCDE stand for in recognizing skin cancer?
Asymmetry, Border, Color, Diameter, Evolution
Correct order of operations in the sliding filament method
___________, __________, release, ____________
grab, pull, release, reset
Increase in muscle size is considered _____________ while loss of muscle mass is ______________.
hypertrophy, atrophy
Oxygen-rich blood returns from the lungs through these vessels.
pulmonary veins
A needle performing a biopsy of lung tissue would travel through the serous membrane layers surrounding the lung in which order?
a) visceral pleura, lung, parietal pleura
b) parietal pleura, visceral pleura, lung
c) visceral pleura, parietal pleura, lung
d) parietal pleura, lung, visceral pleura
b) parietal pleura, visceral pleura, lung
Name two major differences between eccrine and apocrine sweat glands.
(1) Eccrine glands are found all over the body and regulate temperature;
(2) Apocrine glands are located in armpits/groin and activate during stress or puberty
What are the four main functions of the muscular system?
movement
posture
stabilization of joints
generating heat
T/F? All muscles have at least two attachments: the origin and the insertion
T/F? With a few exceptions, all skeletal muscles cross at least two joints.
T, F
This is the correct sequence of heart valves blood passes through, starting with deoxygenated blood returning to the heart.
tricuspid, pulmonary, mitral (bicuspid), and aortic valves