30 Questions
What is the outer layer of the eye called?
Cornea
Which muscle is attached to the upper and lower eyelids?
Levator palpebrae superioris
What is the function of the lacrimal gland?
Producing tears
What is the deepest layer of the eye called?
Inner tunic
Which part of the eye is primarily composed of connective tissue?
Cornea
Which of the following is NOT one of the extrinsic muscles attached to the bones of the orbit?
Optic nerve
Which of the following is NOT one of the traditional senses mentioned in the text?
Balance
Where is sensory information regarding smell sent directly to?
Olfactory bulb
To which part of the brain does the thalamus pass most sensory signals for processing?
Cerebral cortex
Which system is responsible for the sense of touch according to the text?
Integumentary and nervous systems
How many different traditional senses are mentioned in the text?
Five
Where does sensory information from sensing organs relayed to different parts of the brain pass through?
Various pathways
What is the function of the eyelids in protecting the eye?
To trap debris that enters the eye
Which muscle opens the eyelid?
Levator palpebrae superioris
What is the visible part of the ear known as?
Auricle
What is the function of the eustachian tube in the middle ear?
To equalize pressure in the ear
What is the structure that leads sound waves from the auricle to the middle ear?
External auditory canal
What is the role of small hairs and ceruminous glands in the external auditory canal?
To protect the ear from debris
What is the main composition of the cell membrane?
Lipids and proteins
What will happen if there is extensive damage to the cell membrane?
The contents of the cell will leak out
In which part of the cell do all living substances, except for the nucleus, reside?
Cytoplasm
What does the word 'metabolism' refer to in relation to cells?
Activity in the cytoplasm
Which organelle contains enzymes for breaking down proteins, carbohydrates, acids, and foreign substances entering the cell?
Lysosomes
What does the cell membrane do to protect the cell from tiny breaks?
Seals them whenever they occur
Why is it often difficult to detect some odors?
Because olfactory receptors are located very high in the nasal cavity.
What happens to approximately 50 percent of the intensity of an odor within the first second following stimulation?
It is lost.
Which part of the nervous system is always in direct contact with the environment?
The olfactory system.
What can happen if damage occurs to the olfactory neurons?
Sense of smell decreases.
Which sensory organs on the tongue are responsible for detecting chemicals in food?
Taste receptors.
How many basic tastes do taste buds relay to the brain?
Five
Learn about the challenges faced in detecting odors due to the location and adaptability of olfactory receptors in the nasal cavity.
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