Human Anatomy Exam test quiz and
answers graded A+
Peripheral nervous system - ANS✅✅Consists of nerve fibres that carry information between the
CNS and other parts of the body
Afferent division - ANS✅✅Detects, encodes, and transmits peripheral signals to the CNS
Sensory receptors - ANS✅✅Found on all sensory organs and are specialized cells (neurons) that
detect stimuli
Transduction - ANS✅✅Converting broad data into impulses
Sensation - ANS✅✅Acquisition of the information
Perception - ANS✅✅How we interpret sensations
Stimulus
Transduction
Conduction
Perception - ANS✅✅Four steps to perception
Stimulus - ANS✅✅Broad data
Transduction - ANS✅✅Conversion of information to an impulse
Conduction - ANS✅✅How the impulse travels toward the CNS via sensory neurons
Perception - ANS✅✅Our interpretation
Photoreceptors - ANS✅✅- Receive light
,- Found only in the retina of the eye
- 2 types (rods and cones)
Rods and cones - ANS✅✅What are the two types of photoreceptors
Rods - ANS✅✅Primarily responsible for vision and dim light and detect motion
Periphery
Cones - ANS✅✅Detect detail and color. Primarily active in bright light conditions
Back of eye
Color vision
Extrinsic muscles - ANS✅✅Move the eye ball
Medial and lateral canthus, lacrimal caruncle, conjunctiva - ANS✅✅Parts of the eyelid
Medial and lateral canthus - ANS✅✅Corner where upper and lower eyelids meet
Lacrimal caruncle - ANS✅✅Pinky, fleshy portion of inner corner (where gunk builds up)
Conjunctiva - ANS✅✅Membrane lining both the upper and lower lid and the eyeball
Lacrimal apparatus - ANS✅✅Tear producing structure
Lacrimal glands, canaliculi, lacrimal sac, nasolacrimal duct - ANS✅✅Parts of the lacrimal apparatus
Lacrimal glands - ANS✅✅Superior lateral portion of eye
Produce glands
, Canaliculi (lacrimal canals) - ANS✅✅Excess tears drain out of here
Lacrimal sac - ANS✅✅Nasal cavity area
Nasolacrimal duct - ANS✅✅Tears run out of nose
Outer, middle, and inner - ANS✅✅Three layers of the eyeball
Cornea and sclera - ANS✅✅Parts of the outer eyeball
Cornea - ANS✅✅Transparent, anterior covering of the eye
Sclera - ANS✅✅White of the eye
Merges with cornea
Protects and supports the eyeball
Choroid and ciliary body - ANS✅✅Parts on the middle eyeball
Choroid - ANS✅✅Middle layer of the eye, deep to the sclera
Contains blood vessels
Absorbs light
Ciliary body - ANS✅✅Anterior extension of the choroid that helps to support the lens
Retina - ANS✅✅Parts of the inner eyeball
answers graded A+
Peripheral nervous system - ANS✅✅Consists of nerve fibres that carry information between the
CNS and other parts of the body
Afferent division - ANS✅✅Detects, encodes, and transmits peripheral signals to the CNS
Sensory receptors - ANS✅✅Found on all sensory organs and are specialized cells (neurons) that
detect stimuli
Transduction - ANS✅✅Converting broad data into impulses
Sensation - ANS✅✅Acquisition of the information
Perception - ANS✅✅How we interpret sensations
Stimulus
Transduction
Conduction
Perception - ANS✅✅Four steps to perception
Stimulus - ANS✅✅Broad data
Transduction - ANS✅✅Conversion of information to an impulse
Conduction - ANS✅✅How the impulse travels toward the CNS via sensory neurons
Perception - ANS✅✅Our interpretation
Photoreceptors - ANS✅✅- Receive light
,- Found only in the retina of the eye
- 2 types (rods and cones)
Rods and cones - ANS✅✅What are the two types of photoreceptors
Rods - ANS✅✅Primarily responsible for vision and dim light and detect motion
Periphery
Cones - ANS✅✅Detect detail and color. Primarily active in bright light conditions
Back of eye
Color vision
Extrinsic muscles - ANS✅✅Move the eye ball
Medial and lateral canthus, lacrimal caruncle, conjunctiva - ANS✅✅Parts of the eyelid
Medial and lateral canthus - ANS✅✅Corner where upper and lower eyelids meet
Lacrimal caruncle - ANS✅✅Pinky, fleshy portion of inner corner (where gunk builds up)
Conjunctiva - ANS✅✅Membrane lining both the upper and lower lid and the eyeball
Lacrimal apparatus - ANS✅✅Tear producing structure
Lacrimal glands, canaliculi, lacrimal sac, nasolacrimal duct - ANS✅✅Parts of the lacrimal apparatus
Lacrimal glands - ANS✅✅Superior lateral portion of eye
Produce glands
, Canaliculi (lacrimal canals) - ANS✅✅Excess tears drain out of here
Lacrimal sac - ANS✅✅Nasal cavity area
Nasolacrimal duct - ANS✅✅Tears run out of nose
Outer, middle, and inner - ANS✅✅Three layers of the eyeball
Cornea and sclera - ANS✅✅Parts of the outer eyeball
Cornea - ANS✅✅Transparent, anterior covering of the eye
Sclera - ANS✅✅White of the eye
Merges with cornea
Protects and supports the eyeball
Choroid and ciliary body - ANS✅✅Parts on the middle eyeball
Choroid - ANS✅✅Middle layer of the eye, deep to the sclera
Contains blood vessels
Absorbs light
Ciliary body - ANS✅✅Anterior extension of the choroid that helps to support the lens
Retina - ANS✅✅Parts of the inner eyeball
