Human Anatomy and Physiology Answers

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+. 

Hi, please help with this question. Select all the correct options below. Thanks

In the visual system, 

A)a distant object is focussed when the ciliary muscle is relaxed.

B)action potentials occur in rods.

C)photopigments in rods change conformation in response to light.

D)rod Na+ channels open in response to a light stimulus.

E)the fovea contains more rods than it does cones.

A)    What is resident flora? 

with the help of examples describe the types of mechanoreceptors found in non chordates and explain their role in information processing

What is the only way to rid the body of hydrogen ions

a. to secrete them into the renal tubule

b. to buffer them in blood

c. to exhale them along with carbon dioxide

d. to prevent cells from building up lactic acid in the first place

what will happen to a person if its stomach is removed and it dosent receive any further treatment,other than liquid food?

What can be the consequences if, esophagus is directly attacjed with duodenum?

What are the bone changes on a macro and cellular level