What causes consensual light reflex?
The consensual light reflex occurs because both the optic and tectotegmental tracts carry fibers from both eyes. The efferent (motor) pupillary pathway has both parasympathetic and sympathetic nervous system actions.
What is the receptor in the pupillary reflex?
What is the receptor and effector in the pupillary reflex? The retina is the receptor and the effector is the smooth muscle of the iris. They both work together to restrict or enlarge the pupil according to how bright the light it.
Where are the sensory receptor for pupillary reflex?
:Pupillary Reflexes test both, the retina of the eye is the receptor, the optic nerve holds the afferent fibers, the oculomotor nerve contains the efferent fibers, and the smooth muscle of the iris is the effector organ.
Is the consensual reflex somatic or autonomic?
Autonomic Reflexes
Autonomic Reflexes- The autonomic reflexes include the pupillary reflexes as well as many others. 1. Pupillary Reflexes- There are several types of pupillary reflexes- the pupillary light reflex and the consensual reflex.
What is direct and consensual pupillary reflex?
A direct pupillary reflex is pupillary response to light that enters the ipsilateral (same) eye. A consensual pupillary reflex is response of a pupil to light that enters the contralateral (opposite) eye.
What is the effector in eye?
The eye responds to bright light to protect the retina from damageThe bright light triggers a reflex that makes the pupils smaller, meaning less light enters the eyeAs with all reflexes, there is a stimulus, receptor and effectorThe stimulus is the light, the receptor is the light receptors in the eye and the effectors …
What is the receptor involved in the biceps jerk reflex?
Specifically, the test activates the stretch receptors inside the biceps brachii muscle which communicates mainly with the C5 spinal nerve and partially with the C6 spinal nerve to induce a reflex contraction of the biceps muscle and jerk of the forearm.
What are the afferent and efferent branches of the corneal reflexes?
The afferent limb of the reflex is the ophthalmic division of the trigeminal nerve (nasociliary branch). The efferent limb is the facial nerve (branch to the palpebral element of orbicularis oculi).
What cranial nerve is responsible for corneal reflex?
The reflex is mediated by: the nasociliary branch of the ophthalmic branch (V1) of the trigeminal nerve (CN V) sensing the stimulus on the cornea only (afferent fiber).
What is the consensual reflex of the pupil quizlet?
It is the response of the eye that is being stimulated by light. What is consensual Pupillary Light Reflex? It is the response of the eye that is not being stimulated by light.
Which of the following statements is an example of the consensual light reflex?
Which of the following statements is an example of the consensual light reflex? The pupil of the right eye constricts while shining a flashlight into the left eye.
What is the effector in an iris reflex?
In this reflex reaction, the effector is the muscles around the pupil.
What is an example of a receptor?
Receptors
| Sense organ | Stimulus |
|---|---|
| Tongue | Chemicals (in food and drink, for example) |
| Nose | Chemicals (in the air, for example) |
| Eye | Light |
| Ear | Sound |
What is the effector of the patellar reflex?
What is the patellar reflex? A monosynaptic reflex extension of the leg resulting from a sharp tap on the patellar tendon. It helps maintain and upright position. It’s effector muscles are located in the quadriceps femoris.
What nerve gives sensation to the cornea?
The trigeminal nerve gives rise to the corneal nerve system, which plays a crucial role in sensory processing on the ocular surface (touch, pain, and temperature) as well as in healing and homeostasis through release of neuromodulators.
What are the afferent and efferent branches of corneal reflex?
What is consensual reflex of the pupil?
The consensual response is the change in pupil size in the eye opposite to the eye to which the light is directed (e.g., if the light is shone in the right eye, the left pupil also constricts consensually).