IB SEHS Fall Final Review Topic 4

In which type of contraction does the muscle lengthen under load?

• Isokinetic

• Isotonic eccentric

• Isotonic concentric

• isometric

A nerve impulse enters a neuron through a ___________, and then travels along the ________.

• Axon, Dendrite

• Axon, Myelin

• Dendrite, Axon

• Dendrite, Synapse

Movement towards the body is ___________

Movement away from the body is __________

• Abduction, Adduction

• Adduction, Abduction

• Flexion, Extension

• Extension, Flexion

What joint type is correctly paired with the movement it can produce?

• Pivot: Rotation

• Hinge: Adduction

• Pivot: Circumduction

• Hinge: Rotation

What is the excitatory neurotransmitter involved in muscle contraction?

• ATP

• ACh

• cAMP

• Ca2+

Which is true of the sliding filament theory?

• Myosin slides, actin stays in place

• Actin slides, myosin stays in place

• The H-zone remains the same length

• The A Band Shortens

What is DOMS?

• Delayed Overuse Muscle Syndrome

• Delayed Onset Muscle Soreness

• Damaged Overuse Muscle Symptoms

• Damaged Overused Muscle Soreness

Which is not a concentric contraction?

• Biceps during raising stage of curls

• triceps during lowering phase of a pushup

• Gastrocnemius during calf raises

• Triceps during a dumbell kickback

In an antagonistic pair, one muscle is __________ while the other is ________ to produce movement. This is also known as _________________________.

• Contracting, Relaxing, Reciprocal Inhibition

• Contracting, Also Contracting, Muscle Paring

• Shortening, Lengthening, Reciprocal Inhibition

• Shortening, Relaxing, Irritability