What does rectus in anatomy mean?

Definition of rectus : any of several straight muscles (as of the abdomen)

What does rectus mean Latin?

straight
“Rectus” is the Latin word meaning “straight” and is used in English to refer to multiple topics in the sciences, including: In molecular chemistry the R in the R & S isomerism stands for “rectus”

What is rectus position?

The rectus abdominis muscle, also known as the “abdominal muscle” or simply the “abs”, is a paired muscle running vertically on each side of the anterior wall of the human abdomen, as well as that of some other mammals.

What is abdominis definition?

a Latin word meaning “of the abdomen,” used in the names of abdominal muscles, for example the transverse abdominis muscle.

What is the medial rectus?

Medial rectus muscle (Musculus rectus medialis) Medial rectus is one of the six extraocular muscles located in the orbit. Attaching between the bony walls of the orbit and the eyeball, these muscles serve to synchronously move the eyes. Notice how these muscles are divided into four recti and two oblique muscles.

Why is it called rectus?

In Latin, rectus means straight and abdominis means abdominal. Therefore, rectus abdominis simply means straight abdominal, a term which references the structure of this paired muscle. The rectus abdominis muscle is intersected by bands of fibrous connective tissues called tendinous intersections.

What is the rectus abdominis function?

The main function of the rectus abdominis is to move the body between the ribcage and the pelvis. external oblique muscles – these are on each side of the rectus abdominis. The external oblique muscles allow the trunk to twist, but to the opposite side of whichever external oblique is contracting.

Where is your rectus abdominis located?

rectus abdominis – slung between the ribs and the pubic bone at the front of the pelvis. When contracting, this muscle has the characteristic bumps or bulges that are commonly called ‘the six pack’. The main function of the rectus abdominis is to move the body between the ribcage and the pelvis.

What Innervates the medial rectus?

The medial rectus is innervated by the lower division of cranial nerve III (oculomotor). The lateral rectus is innervated by cranial nerve VI (abducens nerve), and the superior oblique is innervated by cranial nerve IV (trochlear).

What is inferior rectus?

The inferior rectus is one of the seven extraocular muscles and is primarily responsible for depressing the eye (downgaze). The inferior rectus is one of the four rectus muscles, which also include the superior rectus, the medial rectus, and the lateral rectus.