Final Exam Review

Which brain structure acts as a relay station that controls the entry of information into the cerebral cortex?

• Hypothalamus

• Thalamus

• Cerebellum

• Hippocampus

To focus on distant objects, the ciliary bodies ______ and the lens is _______

• Contract; flattened

• Contract; rounded

• Relax; flattened

• Relax; rounded

Erica pokes her finger on a sharp pin. Which tract will bring this pain information up to her brain to be processed?

• Posterior tracts

• Anterolateral tracts

• Corticospinal tracts

• Spinocerebellar tracts

Answer explanation

The anterolateral tracts carry sensory information about pain, temperature, and pressure.

True or false? All the visual information from the right eye will be processed in the left hemisphere of the brain.

• True

• False

Which of the following is true about endochondral ossification?

• It is finished during fetal development

• Bone is built on a hyaline cartilage model

• It begins at the secondary ossification center

• Only the skull bones form by this process

Which of the following areas contain cerebrospinal fluid?

• The ventricles of the brain

• The central canal

• The subarachnoid space

• All of the above

What is the letter "c" identifying?

• A-band

• I-band

• H-zone

• Zone of overlap

Which retinal cells are the most important for visual acuity (i.e., clarity of vision)?

• Cones

• Rods

• Bipolar cells

• Amacrine cells

What causes the depolarization phase of a muscle action potential?

• Na+ enters the muscle cell through ligand-gated Na+ channels

• Na+ enters the muscle cell through voltage-gated Na+ channels

• K+ leaves the muscle cell through ligand-gated K+ channels

• K+ leaves the muscle cell through voltage-gated K+ channels

Where is a neuron action potential generated?

• The soma

• The dendrites

• The axon hillock

• The axon terminal