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Biology 2251: Anatomy & Physiology I Exam 4 Review

18 Questions

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Biology 2251: Anatomy & Physiology I Exam 4 Review

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Questions and Answers

What is the primary function of saliva in the process of gustation?

To protect the teeth from decay

To dissolve chemical stimulants for taste buds (correct)

To produce tears to lubricate the eyes

To break down food particles for digestion

Which part of the eye is responsible for maintaining its shape?

Iris

Fibrous tunic (correct)

Sclera

Cornea

What is the function of rods in the retina?

To focus light on the retina

To detect low light levels and provide peripheral vision (correct)

To control the amount of light entering the eye

To detect color and provide high-resolution vision

Which nerve is responsible for transmitting olfactory information?

Olfactory nerve Signup and view all the answers

What is the purpose of the conjunctiva in the eye?

To produce tears to lubricate the eyes Signup and view all the answers

What is the function of the vestibulocochlear nerve?

To regulate balance and equilibrium Signup and view all the answers

From which part of the body do cranial and spinal nerves originate?

The brain Signup and view all the answers

What is the primary function of the visceral reflex arcs?

To respond to sensory stimuli with predictable motor responses Signup and view all the answers

Which division of the autonomic nervous system is responsible for preparing the body for emergency situations?

Sympathetic division Signup and view all the answers

What type of receptors bind to epinephrine and norepinephrine?

Adrenergic receptors Signup and view all the answers

Where do preganglionic neurons of the parasympathetic division reside?

In the brain Signup and view all the answers

What is the primary function of acetylcholine?

To transmit signals across the synapse Signup and view all the answers

What is the primary function of the autonomic nervous system?

Regulation of body homeostasis Signup and view all the answers

What is the outermost layer of connective tissue that surrounds a nerve?

Epineurium Signup and view all the answers

What is the term for the process by which a stimulus is converted into an electrical signal?

Sensory transduction Signup and view all the answers

How many pairs of spinal nerves do humans have?

31 Signup and view all the answers

What is the difference between the posterior and anterior roots of the spinal cord?

Posterior roots carry sensory information, while anterior roots carry motor information Signup and view all the answers

What is the term for the division of the peripheral nervous system that is responsible for transmitting information from sensory receptors to the central nervous system?

Sensory division Signup and view all the answers