Question

the two divisions of the autonomic nervous system are:
peripheral and somatic
somatic and sympathetic
sympathetic and parasympathetic
parasympathetic and peripheral
35 multiple choice 1 point
the macula:
is a pea sized spiral bony cavity connected to the vestibule
contains equilibrium receptors that respond in changes to the position of the head
is the receptor organ for hearing
is cilia in the inner ear
36 multiple choice 1 point
olfactory receptor cells and taste buds are normally stimulated by:
substances in solution
stretching of the receptor cells
the movement of ossicles
photoreceptors

Explanation:

Question 1 (Autonomic Nervous System Divisions)

The autonomic nervous system has two main divisions: sympathetic (prepares body for "fight or flight") and parasympathetic (promotes "rest and digest"). Peripheral and somatic are not divisions of the autonomic system (somatic is a separate nervous system division, peripheral is a broader term). So the correct pair is sympathetic and parasympathetic.

• The cochlea (not macula) is the hearing receptor and a spiral cavity.
• The macula (in vestibule) has equilibrium receptors (macula utriculi and macula sacculi) that detect head position changes (static equilibrium).
• Cilia are part of hair cells, not the macula itself. So the correct option is the one about equilibrium receptors for head position.

• Olfactory receptors need odorants dissolved (in nasal mucus), taste buds need tastants in solution (saliva).
• Stretching is for mechanoreceptors, ossicles move in hearing, photoreceptors are for vision. So they’re stimulated by substances in solution.

Answer:

C. sympathetic and parasympathetic

Question 2 (The Macula)