Question

B Q16. [12pts Use the figure to the right (labeled A-E) to answer the next questions Q16.1 13pt] Which of the labeled region(s) arose developmentally from the hindbrain? Include the name of the region(s). E D Q16.2 (3pt) Which of the labeled region(s), if damaged, would lead to a decrease in the release of brain-derived hormones including, but not limited to corticotropin-releasing hormone (CRH) and adrenocorticotropie hormone (ACTH). gonadotropin-releasing hormone (GnRH) and gonadotropins (LH, FSH). Include the name of the region(s).

if you know 16 otherwise 17 needed

Answer 1

A is the Hypothalamus

B is the somatomotor cortex.

Cis the medulla oblongata

D is the pituitary gland

E is the cerebellum

1. Hindbrain is also known as rhombencephalon. It includes cerebellum, pons, medulla oblongata. So it consists of E and C.

2. Corticotropin releasing hormone is secreted by the hypothalamus. FSH, LH, ACTH, GnRH are secreted by the anterior pituitary. This means the Hypothalamus and anterior pituitary have to be damaged if these hormones have to be decreased. So A and D are damaged.

3. Region B is concerned with the sensory and motor interpretation of the sensations and impulses respectively. Somatosensory cortex and Primary motor areas are located in this region. If this is damages, then the person cannot sense the sensations anywhere inside the body and his motor outputs will also be impaired. Answer is option b.

4. Broca's area is found in the posterior part of the frontal lobe. It is concerned with speech production. It controls motor functions involved with speech production. People with damage to this area can understand the speech well because it is the function of Wernicke's area. The person with damaged Broca's area struggle to put his words together in a speech. They have no problem in fluency of the speech. But their words have sometimes no meaning.