Question

List the structures and fluids that light passes through from the cornea to the retina.

Identify the three types of cones.

Which region of the limbic system is particularly important for the storage and retrieval of long-term memories?

Identify the lobes of the cerebrum and indicate the basis for their names.

Which senses are affected by damage to the temporal lobes?

Describe the four brain wave types associated with an EEG.

Which cranial nerves have motor functions only?

please type it

Answer 1

1) structures and fluids that light passes through from the cornea to the retina :

Light -----> cornea-----> anterior chamber filled with aqueous humor ----> pass through the space between the iris called as pupils -----> Lense ----> enters the posterior segement filled with vitreous Humor -----> Retina

2) three types of cones : For three different colour types depending upon the wavelength of light the three types of cones are,

S - cone - Short wavelength cone

M cone - Medium wavelength cone

L cone - Large wavelength cone

3) region of the limbic system is particularly important for the storage and retrieval of long-term memories is HIPPOCAMPUS.

4) Lobes of the cerebrum : Based on the bone of the cranium, cerebrum is divided into,

Frontal, 2 Parital, Occipital and Temporal lobes

5) Auditory senses are affected by damage to temporal lobe. Also temporal lobe is responsible for verbal and non verbal memory. Damage to temporal lobe will also lead to memory loss.

6) 4 main waves of EEG are - Mnemonic - D-TAB

In increasing order of Frequency,

Delta, theta, alpha, beta

7) Pure motor cranial nerves are -  III, IV, VI, XI, and XII