Human Anatomy and Physiology Answers

Good day,Is this statement True or False?

Descending pathways that inhibit pain stimulate inckude the periaqueductal gray nucleus.

Good day, is this statement True or False?

in the eye the greatesy refraction of lighy from >6m occurs qt the air cornea interface.

Good day, is this statement True or False?

in vision, damage to the optic chiasm results in loss of the lateral visual field in bith eyes (bitemporal hemianopia)

Good day, is this statement True or False?

in the olfactory system, does damage to the receptor affect the perception of test? I was thinking no because olfactory bulb affects it, not the receptors?

Hi, Descending pathway that inhibit pain stimulates inhibitory interneueons in the spinal cord. True or False?

Hi, in the olfactory system, does neurogenesis occur?

Write the process of digestion and absorbtion of these components. Also mentioned enzymes and glands associated with the process of digestion and absorbtion

Please select all correct options

Sensory receptors: 

A) for noxious (pain) stimuli include muscle spindles.

B) for noxious stimuli have a lower threshold than those for touch.

C) in the eye hyperpolarise in response to light.

D) for touch are innervated by myelinated nerve fibres.

E) for proprioception include muscle spindles.

please select all correct options

In the eye

A) contraction of the ciliary muscles decreases the curvature of the lens.

B) lateral inhibition by horizontal cells increases visual contrast.

C) there are more cones in the fovea of the retina than there are rods.

D) the rods take less than three minutes to fully adapt to dim illumination.

E) visual acuity is best at the optic disc.

Good day, lease select all correct options, thanks

The sensation of taste:

A) includes five basic tastes.

B) is abolished if the facial (VIIth cranial) nerve is damaged.

C) is perceived in the lateral geniculate nucleus.

D) is relayed by the vagus (Xth cranial) nerve.

E) of sour occurs when taste buds are stimulated by H+.