Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Palmer Gross 1 exam

Used to describe the type of increase in the size of a muscle due to an increase in the size of each individual muscle fiber Hypertrophy
These muscles are suited for relatively higher levels of continuous metabolic activity and are associated with aerobic metabolism. Type one fibers dark
They are found in places where you want quicker and more powerful contractions and are thus related to strength and speed. (sprinting, weight lifting) type two fibers light
These muscles have a greater capacity for anaerobic metabolism. type two fibers light
These are fibers found in places where long, sustained or continued contractions are required (posture that teaming muscles, ocular, respiratory and masticatory muscles.) type one fibers (dark)
The undifferentiated cytoplasm between the myofibrils and the other organelles of the muscle fibers sarcoplasm
An increase in the size of a muscle due to an actual increase in the number of muscle fiber. Hyperplasia
Used to describe the type of increase in the size of a muscle due to an increase in the size of each individual muscle fiber Hypertrophy
The contractile units of the muscle myofibrils
This is extremely long and multinucleate, with nuclei arranged around the periphery of the cell muscle fiber
This dense the regular connective tissue ______ will continue as the _______ of the muscle Epimysium, tendon
The dense irregular connective layer which surrounds the entire skeletal muscle and separates the muscle from surrounding tissue, organs and other muscles and is continuous with the deep fascia in the area. Epimysium
A more dense layer which surrounds each fasciculi and divides the muscle into a series of separate compartments Perimysium
The delicate sheath which surrounds each individual muscle fiber and binds it to the adjacent muscle fiber. Endomysium
Functions of C.T.'s investment of muscle Connect muscle to bone or other structures. Provide a route through which nerves and blood vessels reach muscle fibers. Provide a non-contractile framework which allow the contraction of a muscle fiber to be transmitted to bone.
Fasciculi are grouped together to form Muscle
Muscle fibers are grouped into bundles known as Fasciculi
Skeletal muscle are composed of cells which are known as Muscle Fibers
Muscle produces 85% of our body heat Heat production
1)Sphincter muscles around eyelids, pupils, and mouth control the admission of light, food, and drink 2)Those that encircle the urethral and anal orifices control elimination of waste. Control of Body openings and passages
1. Speech 2. Facial Expression 3. Writing Communication
1. Maintain Posture 2. Hold articulated bone in place Stability
1. Enables us to move from place to place 2.Move individual body parts 3.Move body contents during respiration, circulation, digestion, defecation, and urination. Movement
Movement, Stability, Communication, Control of openings and passageways, Heat production Functions of skeletal muscle
The specific function of skeletal muscle is the production of voluntary movements. Basic property of skeletal movement Contractility
They act as an inhibitory force associated with the actin filaments that prevent the myosin heads from interacting with actin, thereby preventing indiscriminate muscular movement. Regulatory Proteins
The 2 most common regulatory proteins Both recognize Ca as the signal to allow actin and myosin to interact with each other. Troponin, Tropomyosin
Exhibit characteristics which are somewhere between type I and type II fibers Contract faster than type I but slower than type II Histologically resemble type II but have a greater resistance to fatigue. Intermediate Fibers
The cell membrane Sarcolemma
An elaborate, continuous tubular network which runs both parallel and perpendicular to the myofibrils Function to store Ca. Sarcoplasm Reticulum
Tubular invaginations of the sarcolemma which allow electrical impulses (nerve impulses) to enter the muscle fiber and make their way to the myofibrils Transverse Tubules (T-System)
A red pigment which is almost indistinguishable from the hemoglobin of blood. It gives color to muscle and stores the needed oxygen for the muscle's metabolism. Myoglobin
Myofibrils are formed from longitudinally oriented bundles of thick and thin filaments called Myofilaments
Myofibrils are composed of numerous repeating structural and functional units called Sarcomeres
Smallest functional unit of a myofibril Sarcomeres
These are the main protein elements of the skeletal muscles and consist of Actin, found mainly in I-band, and Myosin, found mainly in the A-bands Contractile Proteins
Each fiber is contained within a tough specialized membrane known as Sarcolemma
Large amounts of sarcoplasm and myoglobin Type I (Dark)
Lesser amounts of sarcoplasm and myoglobin Type II (Light)
Fewer capillary beds Type II (Light)
extensive capillary beds Type I (dark)
Fast twitch fibers Type II (light)
Slow Twitch fibers Type I (Dark)
Numerous Mitochondria Type I (Dark)
Fewer Mitochondria Type II (Light)
More glycogen; fewer fatty acids ATP produced anaerobically Type II (Light)
More fatty acides; less glycogen ATP produced aerobically Type I (Dark)
Atrophy with immobilization Type I (Dark)
Atrophy with aging Type II (Light)
Fatigue resistant Type I (Dark)
Fatigue easier Type II (Light
Created by: Carpathian