When a patient is looking directly to the right, which muscles are contacted in each eye?

Solutions

Expert Solution

There are six extraocular muscles in the eye - superior rectus, superior oblique, lateral rectus,medial rectus, inferior rectus and inferior oblique.

When a person look towards right, his right lateral rectus, right superior oblique and right inferior oblique will contract. In his left eyes, medial rectus, superior rectus and inferior rectus contract.

As right eye will move away from the nose or midline that is laterally but left eye will move towards the nose or midline,that is medially.

Muscles, their innervation and their action are as follows -

Lateral rectus - supplied by abducens nerve and moves eye laterally.

Medial rectus - it is supplied by oculomotor nerve and moves eye medially.

Inferior oblique - it is supplied by oculomotor nerve and moves eye inferiorly and laterally.

Superior oblique - it is supplied by trochlear nerve and moves eye superiorly and laterally.

Superior rectus - it is supplied by oculomotor nerve and is responsible for eye elevation.

Inferior rectus - it is supplied by oculomotor nerve and is responsible for depression of eye.

Sydney Mullin answered 10 months ago

Next > < Previous

Related Solutions

If a patient is "looking at you" but what you notice is that the patient's right...

If a patient is "looking at you" but what you notice is that the patient's right eye is looking directly forward, while, at the same time, the patient's left eye is looking up and medially, which muscle is not working correctly?

1.which muscles would be used to turn head to right?be specific about with side muscles would...

1.which muscles would be used to turn head to right?be specific about with side muscles would be used. 2. list and describe the actions of the three muscles that attach to the coracoid process of the scapula either as the origin or the insertion. 3.List the muscles of respiration and describe their roles 4. List the assigned muscles necessary to rotate the torso to the right. identify the paired muscle involved as left or right. 5. discuss the relationship between...

Which is not a patient right under HIPAA?

When looking at changes in the level of spending, this can directly influence an economy. What...

When looking at changes in the level of spending, this can directly influence an economy. What are some of the challenges that firms will be facing when consumers start to spend more money?

For each motion, identify the upper body muscles involved. Also, indicate which muscles are the agonists...

For each motion, identify the upper body muscles involved. Also, indicate which muscles are the agonists and which are the antogonists. Indicate nerves for each as well. 1. Throwing a dart 2. Setting a volleyball

A patient is lying on his right side in bed. When turning the patient, you notice...

A patient is lying on his right side in bed. When turning the patient, you notice reddened skin on his right trochanter. How can you determine if this is a stage I pressure injury? What are some risk factors contributing to pressure injuries?

Using approximately 400-500 words, describe which motions and muscles in the right elbow, forearm, wrist, and...

Using approximately 400-500 words, describe which motions and muscles in the right elbow, forearm, wrist, and hand are responsible for turning a doorknob clockwise and pushing open a door. What if the motion was reversed and you had to turn the knob counter-clockwise and pull open the door?

Which of the following symptoms would a patient with a lesion (injury) that destroyed the right...

Which of the following symptoms would a patient with a lesion (injury) that destroyed the right side of the spinal cord in the region of the upper back be most likely to experience? A. Loss of both pressure sense and pain in the right foot B. Loss of both pressure sense and pain in the left foot C. Loss of pressure sense in the right foot and pain in the left foot D. Loss of pressure sense in the left...

Which is not right? When rates of return are not the same for all years, the...

Which is not right? When rates of return are not the same for all years, the arithmetic mean will always be higher than the geometric mean. When rates of return are the same for all years, the arithmetic mean and the geometric mean will be equal. Annual geometric mean is not the same as annual holding period yield While the arithmetic mean is best used as an “expected value” for an individual year, while the geometric mean is the best...

When we ask a patient whose right motor cortex is affected to smile, only a half...

When we ask a patient whose right motor cortex is affected to smile, only a half smile will occur on the right side of the face. But if the same person sees someone he loves, if he can produce a natural and wide smile with the participation of both halves of the mouth and face, what could be the reason for this?

Subjects