Can someone please give me some additional infos about the nervous system of a frog?

Answer 1

The frog has a highly developed nervous system. It consists of a brain, a spinal cord, and nerves.

The important parts of the frog brain correspond to comparable parts in the human brain. The medulla regulates automatic functions such as digestion and respiration. Body posture and muscular co-ordination are controlled by the cerebellum. The cerebrum is very small in the frog. By comparison the human cerebrum is very large. In man the cerebrum is involved in many important life processes.

Only 10 cranial nerves originate in the frog's brain. Man has 12. Similarly, the frog has only 10 pairs of spinal nerves. Man has 30 pairs.

Two simple holes make up the nostrils for the frog. There are complex valves but no long nasal passages as there are in man. The frog's sense of smell is registered by olfactory lobes. These make up the forward portion of the brain.

The eye is crude. Its fixed lens cannot change its focus. Poorly developed eyelids do not move. To close its eye, the frog draws the organ into its socket. A third eyelid, or nictitating membrane, may be drawn over the pulled-in eyeball.

There is no external ear. Both eardrums, or tympanic membranes, are exposed. There is only one bone in the frog's middle ear. The human middle ear contains three bones (ossicles). As in man, semicircular canals help to maintain body balance.

Answer 2

to not be impolite, yet: - The worried device and immune device are multiple issues. Which one are you incredibly asking approximately? - This belongs in the biology classification, not physics. - purely telling you the respond on your homework accomplishes not something. You study not something, so why ought to or not it somewhat is nicely worth our time? If there's a particular element you're at a loss for words approximately, ask ans we are able to respond to, yet purely coping the homework question and searching forward to somebody else to do your artwork. - The common worried device contains dozens of areas. to lessen it right down to 2 is style of stupid.