1) When a motor unit is sufficiently stimulated, all of the muscle fibers in tha
ID: 3507355 • Letter: 1
Question
1) When a motor unit is sufficiently stimulated, all of the muscle fibers in that motor unit will contract.
True or False
2) Based on the name of the muscle pronator teres, what can you tell about it?
Check All That Apply
Its shape
Its action
Its number of muscle heads
Its body region
3) Check all that are a function of skeletal muscle tissue.
Check All That Apply
Regulation of blood pH
Body movement
Maintenance of posture Maintenance of posture
Heat production
Regulating elimination of materials
Protection and support
4) Myotomes in a developing limb are divided into dorsal and ventral muscle masses.
True or False
5) Stand on both feet and bring one foot up to touch the heal of your foot to your buttocks. The hamstring muscles are acting as what?
Synergist
Agonist
Antagonist
6) Place the organizational level of muscle tissue in order, beginning with muscle and ending with the smallest component.
Fascile
Myofilament
myofibril
muscle
muscle fibers
Explanation / Answer
1.true
Explanation:motor unit actually is motor nerve.and All muscle fibres in a motor unit are of the same fibre type. When a motor unit is activated, all of its fibres contract.
2.Based on the name of the muscle pronator teres, we can tell its actions.
This is located mainly in the forearm.it mainly serve to pronate the forearm.it has two heads, numeral, and ulner.it is mainly provide the flexibility of forearm
3.function of skeletal muscles are
Body movement:skeletal muscle contraction mainly pull on tendons.and tendons always attached with bones.when muscle contraction occur as a result muscle shorten happen.and that produce force to move the bones.
Maintenance of posture Maintenance of posture:contraction of skeletal muscle stabilised the joints.that help to maintain body postures.
Heat production:when this muscle contract produce heat.when body temperature drop.skeletal muscle then maintain the body temperature.
Regulating elimination of materials:circular skeletal muscle bands (sphincters) contract and relax to regulate passage of material and this is allow to voluntarily control the expulsion of feces and urine
Protection and support:skeletal muscle mainly form by muscle,bones, tendons, ligaments.when skeletal muscle contract.all the parts of skeletal muscle work together.this protect and support and help to move our body.
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