What is the meaning of Omo-?
Define Omo-. Omo- synonyms, Omo- pronunciation, Omo- translation, English dictionary definition of Omo-. 1. A combining form used in anatomy to indicate connection with, or relation to, the shoulder or the scapula. Webster's Revised Unabridged Dictionary,...
What is the anatomy of omohyoid?
Omohyoid is an infrahyoid muscle that facilitates speech and swallowing. Learn now about the anatomy of omohyoid and its actions at Kenhub!
What does the omohyoid muscle innervate?
The omohyoid muscle is proximally attached to the scapula and distally attached to the hyoid bone. The omohyoid is innervated by a branch of the cervical plexus, the ansa cervicalis, and mostly acts to stabilise the hyoid bone.
Where does the belly of the omohyoid attach to the scapula?
Upon originating at the scapula, the inferior belly of omohyoid passes deep to the sternocleidomastoid muscle to join the intermediate tendon located behind it. Further along its course towards the hyoid bone, the superior belly of omohyoid muscle converges with the sternohyoid muscle and inserts in close proximity to it.
What does the suffix AD mean in anatomy?
Suffix used in anatomic nomenclature meaning -ward; toward or in the direction of the part indicated by the main portion of the word.
What does pm mean in anatomy?
PM. post meridiem (in the afternoon)
What are medical abbreviations?
In clinical practice, abbreviations are often used in patient progress notes, prescriptions, pharmacy notes, discussions, etc. They are often used by practitioners to save time and can be helpful if you know what they stand for.
What is DC medical term?
: a medical procedure in which the uterine cervix is dilated and a curette is inserted into the uterus to scrape away the endometrium (as for the diagnosis or treatment of abnormal bleeding or for surgical abortion during the early part of the second trimester of pregnancy) : dilation and curettage. DC.
What is the function of the omohyoid muscle?
The function of this muscle is to depress the hyoid bone and larynx and reestablish breathing following the act of swallowing.
Where does the belly of the omohyoid come from?
The superior belly of omohyoid arises from the intermediate tendon, near the level of the internal jugular vein.
What is the intermediate tendon of the omohyoid?
The intermediate tendon of omohyoid is ensheathed by deep cervical fascia. This acts as a sling, binding the muscle to the inferiorly located clavicle and first rib, and helping the muscle to maintain its angulated pathway.
Where is the superior belly of the omohyoid?
The superior belly of omohyoid arises from the intermediate tendon, near the level of the internal jugular vein. Here, the muscle changes its direction and courses almost vertically to insert at the lower border of the body of the hyoid bone, lateral to the insertion of the sternohyoid muscle.
Which muscle is the base of the occipital triangle?
Occipital triangle: the base of this triangle is formed by the superior margin of the inferior belly of omohyoid muscle. This triangle contains some important nerves, including the accessory nerve (CN XI) and branches of both the cervical plexus and brachial plexus . Supraclavicular triangle: the superior border of this triangle is formed by ...
Where did the name Omohyoid come from?
The name "omohyoid" derives from the Greek "omos" meaning shoulder, giving one of its attachments, and " hyoid ", giving the other attachment – the hyoid bone.
Where does the omohyoid muscle originate?
The omohyoid muscle may be doubled or completely absent in some people. It may originate from the clavicle rather than the scapula. It occasionally arises from the superior transverse scapular ligament, which crosses the scapular notch, its extent of attachment to the scapula varying from a few millimetres to 2.5 cm.
Which plexus innervates the omohyoid?
The omohyoid is innervated by a branch of the cervical plexus, the ansa cervicalis. The inferior belly of the omohyoid is innervated by the three cervical branches (C1-C3) that make up the ansa cervicalis, while the superior belly is innervated by the superior root of ansa cervicalis which contains only fibers from the first cervical spinal nerves (C1).
Which part of the neck divides the anterior triangle into an upper carotid triangle and a lower muscular triangle?
The inferior belly of the omohyoid divides the posterior triangle of the neck into an upper or occipital triangle and a lower or subclavian triangle. Its superior belly divides the anterior triangle into an upper carotid triangle and a lower muscular triangle.
