Anatomy of the Ear Quiz

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What is the process of converting one form of energy into another by sensory receptors known as?

Modulation

Inhibition

Adaptation

Transduction (correct)

Which type of sensory receptor is very quickly adapting, especially with continuous stimulation?

Thermoreceptors

Mechanoreceptors

Tonic receptors

Phasic receptors (correct)

What are nociceptors responsible for detecting?

Vibrations

Hot and cold sensations

Chemicals in the body

Pain (correct)

Which type of receptor is responsible for responding to light in the eyes?

Photoreceptors Signup and view all the answers

Where are exteroceptors primarily located in the body?

In the skin and mucous membranes Signup and view all the answers

Which part of the eye is responsible for preventing light scatter and thus preventing blurriness?

Choroid Signup and view all the answers

What is the function of the Ciliary muscle in the eye?

Changes the shape of the lens Signup and view all the answers

Which part of the ear can become infected and potentially rupture due to middle ear infections?

Tempanic membrane Signup and view all the answers

Which type of cells in the retina are highly sensitive to light but have decreased visual acuity?

Rods Signup and view all the answers

What is the function of the pigment layer in the retina?

Prevent light scatter Signup and view all the answers

Which gland secretes calcitonin to decrease the amount of calcium in the bloodstream?

Thymus gland Signup and view all the answers

What is the role of parathyroid hormone (PTH) when the blood calcium level is low?

Increase bone resorption Signup and view all the answers

Which system is the thymus gland primarily involved in?

Immune system Signup and view all the answers

Which hormones are released by the adrenal medulla in response to stress, fear, and pain?

Catecholamines (epinephrine, norepinephrine, dopamine) Signup and view all the answers

What is the main function of aldosterone released by the adrenal cortex?

Regulate electrolyte balance Signup and view all the answers

What is the primary function of the outer ear in relation to sound?

Transmit sound waves to the eardrum Signup and view all the answers

How does the ear protect the eardrum from bacterial growth?

By secreting lysozyme in the middle ear Signup and view all the answers

Which part of the brain can be directly influenced by the olfactory cortex?

Amygdala Signup and view all the answers

What is the unit used to measure loudness or amplitude of sound vibrations?

Hertz (Hz) Signup and view all the answers

In terms of sound perception, what does pitch refer to?

The loudness or intensity of a sound Signup and view all the answers

Where does the process of converting sound waves into electrical signals begin in the ear?

Oval window Signup and view all the answers

Which part of the ear is responsible for maintaining posture and detecting angular acceleration?

Cristae ampullary Signup and view all the answers

What type of fluid is found in the scala media of the cochlear duct?

Endolymph Signup and view all the answers

Which structure in the ear is responsible for detecting linear acceleration and static equilibrium?

Vestibule Signup and view all the answers

In the auditory pathway, where do 1st order neuron fibers leave the cochlea?

Cochlear nerve CNVIII Signup and view all the answers

What is the function of the hypothalamus in the endocrine system?

Regulating water balance and thermoregulation Signup and view all the answers

Which gland is ductless and secretes hormones directly into the bloodstream?

Endocrine gland Signup and view all the answers

What happens in the case of high or low blood calcium levels to maintain homeostasis?

Activation of the parathyroid hormone Signup and view all the answers

Which part of the eye is primarily affected by macula degeneration?

Retina Signup and view all the answers

How do endocrine and nervous systems differ in terms of communication speed and duration of effects?

Endocrine system reacts slower but its effects last longer Signup and view all the answers

What is the function of the pineal gland in the body?

Regulation of the circadian rhythm Signup and view all the answers

Which hormone is known as the 'master gland'?

Growth hormone Signup and view all the answers

What does dopamine inhibit in the body?

Prolactin Signup and view all the answers

Which term is used to describe the 'seat of the soul' or 'third eye' in old terms?

Pineal gland Signup and view all the answers

What is the primary function of oxytocin in the body?

Induction of labor contractions and milk ejection Signup and view all the answers

Which hormone is involved in the emotional bonding between partners and mother-child bonding?

Oxytocin Signup and view all the answers

What does TRH (Thyrotropin-releasing hormone) stimulate in the anterior pituitary gland?

Thyroid-stimulating hormone release Signup and view all the answers

'Tropin' as a suffix signifies that a hormone is going to:

Stimulate another tissue to release hormone Signup and view all the answers

'Somatostatin' primarily functions to inhibit the release of which hormone?