Select the answer with the correct matching of the structure, its location and function.
Structure |
Location |
Function |
Eustachian |
Anterior part of internal ear |
Equalizes air pressure on either sides of tympanic membrane |
Structure |
Location |
Function |
Cerebellum |
Mid -brain | Controls respiration and gastric secretions |
Structure |
Location |
Function |
Hypothalamus |
Forebrain | Control body temperature, urge for eating and drinking |
Structure |
Location |
Function |
Hypothalamus |
Forebrain | Control body temperature, urge for eating and drinking |
Which part of human brain is concerned with the regulation of body temperature?
Medulla oblongata
cerebellum
cerebrum
cerebrum
The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in
vertebrae
nails
ear ossicles
ear ossicles
Which one of the following is the correct difference between rod cells and cone cells of our retina?
Features |
Rod cells |
Cone cells |
Visual acuity |
High |
Low |
Features |
Rod cells |
Cone cells |
Visual Pigment contained |
Iodeosin |
Rhodopsin |
Features |
Rod cells |
Cone cells |
Overall function |
Vision in poor light |
Colour vision and detailed vision in bright light |
Features |
Rod cells |
Cone cells |
Overall function |
Vision in poor light |
Colour vision and detailed vision in bright light |
C.
Features |
Rod cells |
Cone cells |
Overall function |
Vision in poor light |
Colour vision and detailed vision in bright light |
The retina is the neural and sensory layer of the eyeball. A small, oval yellowish area of the retina lying exactly opposite the centre of the cornea is named the macula lutea or yellow spot, which has at its middle a shallow depression the fovea centrails. The foveacentrails has cone cells only. It is devoid or rods and blood vessels. The rods contain the rhodopsin (visual purple) pigment and enable to animals to see in darkness. Therefore. present in large number in nocturanal animals.The cones contain the iodopsin (visual violet) pigment and chiefly concerned with distinction in colour and light vision during daytime.
Cornea transplant in humans is almost never rejected. This is because
its cells are least penetrable by bacteria
It has no blood supply
It is composed of enucleated cells
It is composed of enucleated cells
Which one of the following is a matching pair of a body feature and the animal possessing it?
Post-anal tail - Octopus
Ventral Central nervous system - Leech nervous system
Pharyngeal gill slits absent in embryo
Pharyngeal gill slits absent in embryo
Bowman’s glands are located in the
proximal end of uriniferous tubules
anterior pituitary
female reproductive system of cockroach
female reproductive system of cockroach
Which one of the following pairs of structures distinguishes a nerve cell from other types of cells?
perikaryon and dendrites
vacuoles and fibres
flagellum and modulloary sheath
flagellum and modulloary sheath
Ultrasound of how much frequency is beamed into human body for sonography?
30-45 MHz
15-30 MHz
1-15 MHz
1-15 MHz
Biological organisation starts with
submicroscopic molecular level
cellular level
organismic level
organismic level