Muscular System adv bio

When stimulated, a muscle fiber will contract, fully or not at all, whether contraction occurs, depends on whether the stimulus reaches the required threshold

• Abduction

• Actin

• Adduction

• All or none

Moving away from the midline of the body opposite motion of adduction.

• Abduction

• Actin

• Adduction

• All or none

Moving toward the midline of the body, opposite the motion of abduction.

• Abduction

• Actin

• Adduction

• All or none

Contractile proteins found in the thin myofilaments at skeletal muscle.

• Abduction

• Actin

• Adduction

• All or none

When the top of the foot is elevated, brought towards the front of the lower leg with the toes pointing upward.

• Antagonist

• Bursa

• Dorsiflexion

• Extension

Those having opposing actions; for example, muscles that flex the upper arm or antagonists to muscles that extend it.

• Antagonist

• Bursa

• Dorsiflexion

• Extension

Small, cushion like sacks far between moving body parts making moving easier.

• Antagonist

• Bursa

• Dorsiflexion

• Extension

Increasing the angle between two bones of the joint

• Antagonist

• Bursa

• Dorsiflexion

• Extension

Wasting away of tissue; decrease in size of a part, sometimes referred to as disuse.

• Fatigue

• Atrophy

• Hypertrophy

• Flexion

Loss of muscle power; weakness.

• Fatigue

• Atrophy

• Hypertrophy

• Flexion

Tags

NGSS.HS-LS1-7