The human hind brain comprises three parts, one of which is

• spinal cord

• corpus callosum

• Cerebellum

• Cerebellum

Which part of the human ear plays no role in hearing as such but is otherwise very much required?

• Eustachian tube

• Organ of corti

• Vestibular apparatus

• Vestibular apparatus

163.

How do parasympathetic neural signals affect the working of the heart?

• Reduce both heart rate and cardiac output

• heart rate is increased without affecting the cardiac output

• Both heart rate and cardiac output increase

• Both heart rate and cardiac output increase

Injury localised to the hypothalamus would most likely disrupt

• short term memory

• coordination during locomotion

• executive function, such as decision making 

• executive function, such as decision making 

Which one of the following statements is not correct?

• Retinal is the light absorbing portion of visual photopigments

• In retina, the rods have the photopigments rhodopsin, while cones have three different photopigments

• Retinal is a derivative of vitamin -C 

• Retinal is a derivative of vitamin -C 

The supportive skeletal structures in the human external ears and in the nose tip are examples of

• ligament

• areolar tissue

• bone

• bone

Which of the following regions of the brain is incorrectly paired with its function?

• Medulla oblongata – homeostatic control

• Cerebellum – language comprehension

• Corpus callosum – communication between the left and right cerebral cortices

• Corpus callosum – communication between the left and right cerebral cortices

A gymnast is able to balance his body upside down ever in the total darkness because of

• cochlea

• vestibular apparatus 

• tectorial membrane

• tectorial membrane

The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eyes is a derivative of 

• Vitamin -C 

• Vitamin -D 

• Vitamin - A 

• Vitamin - A 

• A	B	C
  Placenta	Insulin	Vasopressin

• A	B	C
  Ovary	Insulin	Calcitonin

• A	B	C
  Placenta	Glucagon	Calcitonin

• A	B	C
  Placenta	Glucagon	Calcitonin