The pinna;- is funnel shaped; cartilaginous structure that collects and directs sound waves into the ear;
The external auditory canal; - a tube that directs sound waves from the pinna to the
eardrum lining the auditory canal;
The canal contains wax-secreting cells; and hair which
traps dust particles; and pathogenic bacteria hence prevent them from getting into the ear;
The eardrum; - has a thin tough membrane; that easily vibrates when hit by sound waves; transferring them into vibrations.
The ear ossiscles; - they act like a layer and they easily move forward and backward to
amplify sound vibrations that hit them;
The suspensory ligaments; - suspends the ear ossicles and prevents excessive vibration that would otherwise damage the inner parts of the ear;
The eustachian tube - it connects the middle ear with the pharynx; and it equalises air pressure between the middle and the outer ear so as to prevent distortion of the eardrum;
The oval window;- has thin membrane that transmits sound vibrations into the endolymph;
The cochlea;- highly coiled to occupy a small area but to accommodate a large number
of sensory cells;
The perilymph and endolymph; - these are fluids that absorb mechanical shock; hence protect the delicate\parts in the inner ear; They also transmit vibrations to the inner parts of the ear;
The sensory cells; - when stimulated, they generate nerve impulses; which are transmitted by the auditory nerve to the brain;
The semi-circular canals; - these are tubular cavities that maintains body balance and posture; they contain special cells that are sensitive to changes in gravity;
franco crick answered the question on January 29, 2018 at 10:10
- Describe the adaptations of a mammalian eye to its functions.(Solved)
Describe the adaptations of a mammalian eye to its functions.
Date posted: January 29, 2018. Answers (1)
- What chemical compound is found in cassava 'root' present at the center making it unrawful.(Solved)
What chemical compound is found in cassava 'root' present at the center making it unrawful.
Date posted: January 29, 2018. Answers (1)
- State the post fertilization changes that occur in a vertebrate ovum (Solved)
State the post fertilization changes that occur in a vertebrate ovum
Date posted: January 26, 2018. Answers (1)
- Describe how a mammalian heart is structurally adapted to its
function(Solved)
Describe how a mammalian heart is structurally adapted to its
function
Date posted: January 26, 2018. Answers (1)
- Using a relevant example in each case, describe simple and
conditional reflex actions.(Solved)
Using a relevant example in each case, describe simple and
conditional reflex actions.
Date posted: January 26, 2018. Answers (1)
- State two factors which increase the rate of mutation(Solved)
State two factors which increase the rate of mutation.
Date posted: January 25, 2018. Answers (1)
- Name five methods of excretion in plants.(Solved)
Excretion in plants.
Date posted: January 25, 2018. Answers (1)
- State the reason for the decrease of biomass in the successive trophic levels?(Solved)
State the reason for the decrease of biomass in the successive trophic levels?
Date posted: January 25, 2018. Answers (1)
- Name the common heart diseases in humans(Solved)
Name the common heart diseases in humans
Date posted: January 24, 2018. Answers (1)
- State the characteristics of mutations?(Solved)
State the characteristics of mutations?
Date posted: January 24, 2018. Answers (1)
- State the differences between somatic and autonomic systems of peripheral nervous system?(Solved)
State the differences between somatic and autonomic systems of peripheral nervous system?
Date posted: January 24, 2018. Answers (1)
- forWhat are the functions of a synapse?(Solved)
What are the functions of a synapse?
Date posted: January 24, 2018. Answers (1)
- State the functions of hormones in animals(Solved)
State the functions of hormones in animals
Date posted: January 24, 2018. Answers (1)
- Explain how an eye viewing a near object adjusts to viewing a far object(Solved)
Explain how an eye viewing a near object adjusts to viewing a far object.
Date posted: January 24, 2018. Answers (1)
- State the general characteristics of vertebrae(Solved)
State the general characteristics of vertebrae
Date posted: January 24, 2018. Answers (1)
- How does brain send impulse to different sense organs?(Solved)
How does brain sends impulse to different sense organs?
Date posted: January 23, 2018. Answers (1)
- Differentiate between isolation and reverse barrier nursing(Solved)
Differentiate between isolation and reverse barrier nursing.
Date posted: January 23, 2018. Answers (1)
- Describe the mechanism of exhalation in a respiratory system of a human being.(Solved)
Describe the mechanism of exhalation in a respiratory system of a human being.
Date posted: January 22, 2018. Answers (1)
- Describe the mechanism of inhalation in a respiratory system of human beings.(Solved)
Describe the mechanism of inhalation in a respiratory system of human beings.
Date posted: January 22, 2018. Answers (1)
- State significance of plant taxonomy and its related botanical disciplines. (Solved)
State the significance of plant taxonomy and its related botanical disciplines
Date posted: January 21, 2018. Answers (1)