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WorksheetsHuman Biology 111 Unit 3: The Muscular System Part One
Total questions: 36
Worksheet time: 27mins
Synergistic muscles
movement is produced when one muscle of the pair contracts and the other relaxes
ex. bicep curl
muscles that must contract at the same time to cause movement
ex. walking
the end attached to the bone that remains relatively stationary during movement
the end attached to the bone that moves
antagonsitic muscles
movement is produced when one muscle of the pair contracts and the other relaxes
ex. bicep curl
muscles that must contract at the same time to cause movement
ex. walking
the end attached to the bone that remains relatively stationary during movement
the end attached to the bone that moves
origin of a muscle
movement is produced when one muscle of the pair contracts and the other relaxes
ex. bicep curl
muscles that must contract at the same time to cause movement
ex. walking
the end attached to the bone that remains relatively stationary during movement
the end attached to the bone that moves
insertion of a muscle
movement is produced when one muscle of the pair contracts and the other relaxes
ex. bicep curl
muscles that must contract at the same time to cause movement
ex. walking
the end attached to the bone that remains relatively stationary during movement
the end attached to the bone that moves
This characteristic of a muscle responds to stimuli
(a)
This characteristic of a muscle shortens
(a)
This characteristic of a muscle stretches
(a)
This characteristic of a muscle can return to their original length after being shortened or stretched
(a)
This muscle is found throughout the body, has striations, and is voluntary
(a)
This muscle is limted to the heart, has striations, and is involuntary
(a)
This muscle is found with in the intestines and surrounding blood vessels, has no striations, and is involuntary
(a)
Functions of skeletal muscles
moving our body and maintaining posture
stores fat and creates red blood cells
supporting internal organs and generating heat
removes nitrogenous wastes
pushing against veins and lymphatic vessels to move blood and lymph along
(a) muscles that contract at the same time to cause movement
(a) muscles - movement is produced when one muscle pair contracts and the other relaxes
(a) of a muscle - the end attached to the bone that remains relatively stationary during movement
(a) of a muscle - the end attached to the bone that moves
How is a tendon different from a ligament?
(a) holds muscle to bone while the other holds bone to bone
(a) - twitch: designed for endurance, contracts slowly and is sustained
(a) - twitch: designed for a rapid response, contractions are short and powerful
(a) - the condition of having an inflamed tendon; caused by overuse, misuse, and age; heals slowly due to poor blood supply; treatment is rest
(a) - AKA muscle strain or tear; caused by overstretching that damages the muscle or tendon; treatment includes ice to reduce swelling and keeping the muscle stretched
Epimysium
tissue that surrounds the whole muscle
layer that surround a fascicle
a bundle of muscle cells
tissue around a fiber
perimysium
tissue that surrounds the whole muscle
layer that surround a fascicle
a bundle of muscle cells
tissue around a fiber
fascicle
tissue that surrounds the whole muscle
layer that surround a fascicle
a bundle of muscle cells
tissue around a fiber
endomysium
tissue that surrounds the whole muscle
layer that surround a fascicle
a bundle of muscle cells
tissue around a fiber
Sarcolemma
cell membrane of a muscle cell
cytoplasm of a muscle cell
a form of smooth endoplasmic reticulum found in muscle cells that store calcium
makes ATP for muscle contractions
pockets in the plasma membrane of a muscle cell that carries signals from the moto neurons deep into the muscle cell to ever sacromere
Sarcoplasm
cell membrane of a muscle cell
cytoplasm of a muscle cell
a form of smooth endoplasmic reticulum found in muscle cells that store calcium
makes ATP for muscle contractions
pockets in the plasma membrane of a muscle cell that carries signals from the moto neurons deep into the muscle cell to ever sacromere
sarcoplasmic reticulum
cell membrane of a muscle cell
cytoplasm of a muscle cell
a form of smooth endoplasmic reticulum found in muscle cells that store calcium
makes ATP for muscle contractions
pockets in the plasma membrane of a muscle cell that carries signals from the moto neurons deep into the muscle cell to ever sacromere
mitochondria
cell membrane of a muscle cell
cytoplasm of a muscle cell
a form of smooth endoplasmic reticulum found in muscle cells that store calcium
makes ATP for muscle contractions
pockets in the plasma membrane of a muscle cell that carries signals from the moto neurons deep into the muscle cell to ever sacromere
Transverse tubules ( T tubules)
cell membrane of a muscle cell
cytoplasm of a muscle cell
a form of smooth endoplasmic reticulum found in muscle cells that store calcium
makes ATP for muscle contractions
pockets in the plasma membrane of a muscle cell that carries signals from the moto neurons deep into the muscle cell to ever sacromere
Myofibrils
special bundles of protein (organelles) that cause contractions
thin filaments that are more numerous
thick filaments
a contractile unit of myofibril
attached to actin filaments and sacromeres
actin
special bundles of protein (organelles) that cause contractions
thin filaments that are more numerous
thick filaments
a contractile unit of myofibril
attached to actin filaments and sacromeres
myosin
special bundles of protein (organelles) that cause contractions
thin filaments that are more numerous
thick filaments
a contractile unit of myofibril
attached to actin filaments and sacromeres
sacromere
special bundles of protein (organelles) that cause contractions
thin filaments that are more numerous
thick filaments
a contractile unit of myofibril
attached to actin filaments and sacromeres
Z discs/lines
special bundles of protein (organelles) that cause contractions
thin filaments that are more numerous
thick filaments
a contractile unit of myofibril
attached to actin filaments and sacromeres
(a) are distinct bands formed by arrangement of myofibrils within a muscle fiber
