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
B.
vestibular apparatus
Vestibular apparatus of membranous labyrinth is an intricate series of inter-connected and fluid-filled canals which regulates balance and spatial orientation in the absence of vision, the movement of body will be regulated only by vestibular apparatus.
The otolith organs (utricle and saccule) regulates linear acceleration and semicircular canals sense rotational acceleration in various directions.
The cochlea, tectorial membrane and organ of Corti are responsible for transduction of sound waves.
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
Gland |
Secretion |
Effect on Body |
A |
Oestrogen |
Maintenance of secondary sexual characters |
Alpha cells of islets of Langerhans |
B |
Raise blood sugar level |
Anterior pi- tuitary |
C |
Over secretion leads to gigantism |
A |
B |
C |
Placenta |
Insulin |
Vasopressin |
A |
B |
C |
Ovary |
Insulin | Calcitonin |
A |
B |
C |
Placenta |
Glucagon |
Calcitonin |
A |
B |
C |
Placenta |
Glucagon |
Calcitonin |
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 |