Ch. 10: HEENT Flashcards
The process of understanding and interacting with the environment through the senses
Sensory perception
The external structures of the eye
eyebrows, upper and lower eyelids, eyelashes, conjunctivae, and lacrimal glands
3 layers surround the globe of the eye
- the sclera, the outer layer that merges with the cornea
- the uvea, the middle layer that contains the choroid, ciliary body, and iris
- the retina, the inner layer which is an extension of the central nervous system
The purpose of the external ear
to collect and focus sound waves, locate the sound, and protect the ear canal from water and dirt
Responsible for sound amplification by way of vibration of the tympanic membrane
the middle ear
Sound waves within the inner ear are transmitted to the _______ ____ of the brain, where interpretation of sound occurs
temporal lobe
______ _______ within the nasal cavity trap airborne particles in the cilia, which prevents them from entering the lungs
mucous membranes
The mouth consists of
lips, tongue, teeth, gums, and salivary glands
The thyroid regulates
cellular metabolism, the hormones control mental and physical growth and development