Lab 7 Review #1

Reorder the following events involved in a monosynaptic reflex...

• Alpha motor neuron (effector) stimulates extensor muscle to contract

• Integration center stimulated

• Muscle spindle stimulated

• Sensory afferent neuron excited

The following reflex controls visceral effectors such as smooth muscle, cardiac muscle, or a gland...

• somatic reflex

• autonomic reflex

• monosynaptic reflex

• polysynaptic reflex

Regular muscle fibers surrounding a muscle spindle are called:

• intrafusal muscle fibers

• extrafusal muscle fibers

Match the following factors with their impact on reaction time:

• decreases

• drugs

• both increases and decreases

• practice

• decreases

• age

• both increases and decreases

• distraction

• increases

• punishment

pupillary dilation refers to...

• miosis

• mydriasis

the following reflex stimulates muscle contraction when muscle length is increased...

• stretch reflex

• tendon reflex

• somatic reflex

• autonomic reflex

When the patellar ligament is struck or tapped just below the patella, which of the following physiological responses is most likely to occur?

• The thigh muscles relax, leading to a decrease in leg extension.

• The patella dislocates from its normal position within the knee joint.

• The quadriceps muscles contract, causing an involuntary leg extension.

• The calf muscles contract, leading to plantar flexion of the foot.

this muscle constricts during the consensual light reflex...

• superior rectus

• pupillary sphincter

• inferior oblique

• lateral rectus