25 Questions
Which of the following muscles is NOT a muscle of the larynx?
Masseter
What is the function of the posterior cricoarytenoid muscle?
To abduct the vocal cords
Which two muscles work together to relax the vocal cords?
Thyroarytenoid and cricothyroid
What is the function of the transverse and oblique arytenoids?
To rotate the arytenoid cartilages
Which muscle is responsible for tensing the vocal cords?
Cricothyroid
What is the location of the sagittal line in the neck?
Medially down the midline of the neck
How many triangles is the neck subdivided into?
Four triangles
Which of the following triangles is NOT one of the four subdivisions of the neck?
Occipital Triangle
What is the name of the triangle that lies inferior to the mandible?
Submandibular Triangle
Which triangle is located superior to the hyoid bone?
Submental Triangle
What is the name given to the two lateral halves of the brain?
Cerebral hemispheres
What is the name of the deep cleft that separates the two cerebral hemispheres?
Longitudinal cerebral fissure
In which plane is the longitudinal cerebral fissure located?
Median plane
How does the longitudinal cerebral fissure separate the two cerebral hemispheres?
Incompletely separates the hemispheres
What is the result of the incomplete separation of the cerebral hemispheres by the longitudinal cerebral fissure?
The hemispheres are partially connected
Which spinal nerves form the cervical plexus?
C1 to C4
What is the main function of the cervical plexus?
Both sensory and motor functions
Which part of the spinal nerve contributes to the formation of the cervical plexus?
Ventral primary rami
How many spinal nerves are involved in the formation of the cervical plexus?
4
What is the level of the spinal nerves that form the cervical plexus?
Cervical
Which muscle of the soft palate is responsible for tensing it?
Tensor veli palatini
Which of the following muscles is NOT a muscle of the soft palate?
Cricothyreoideus
Which two muscles are involved in the swallowing mechanism?
Palatoglossus and Palatopharyngeus
What is the primary function of the levator veli palatini muscle?
To elevate the soft palate
Which muscle of the soft palate is involved in the movement of the uvula?
Musculus uvulae
Study Notes
Muscles of the Larynx
- Cricothyroid, thyroarytenoid, posterior cricoarytenoid, lateral cricoarytenoid, transverse and oblique arytenoids, and vocalis are muscles of the larynx.
The Cervical Plexus
- The cervical plexus is formed by the ventral primary rami of C1 to C4.
- It has both sensory and motor branches.
- The cervical plexus is located medially, along the sagittal line down the midline of the neck.
- It is subdivided into four triangles: carotid triangle, submental triangle, submandibular triangle, and muscular triangle.
Cerebral Hemispheres
- The cerebral hemispheres are the two lateral halves of the brain.
- A deep median cleft, the longitudinal cerebral fissure, incompletely separates the two cerebral hemispheres across the median plane.
Muscles of the Soft Palate
- Tensor veli palatini, levator veli palatini, palatoglossus, palatopharyngeus, and musculus uvulae are muscles of the soft palate.
Identify the different muscles of the larynx, including the cricothyroid, thyroarytenoid, and more. Test your knowledge of human anatomy and physiology.
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