Questions: 2. Which of the following describes the orbicularis oris? a. Convergent b. Bipennate c. Circular d. Unipennate

2. Which of the following describes the orbicularis oris? a. Convergent b. Bipennate c. Circular d. Unipennate
Transcript text: 2. Which of the following describes the orbicularis oris? a. Convergent b. Bipennate c. Circular d. Unipennate
failed

Solution

failed
failed

The answer is c: Circular.

Explanation for each option:

a. Convergent: This describes a muscle where the fibers converge from a broad area to a single tendon or point. An example is the pectoralis major. The orbicularis oris does not have this structure.

b. Bipennate: This describes a muscle with fibers on both sides of a central tendon, resembling a feather. An example is the rectus femoris. The orbicularis oris does not have this structure.

c. Circular: This describes a muscle that forms a ring around a body opening, allowing it to constrict or close the opening. The orbicularis oris is a circular muscle that surrounds the mouth, controlling movements such as puckering the lips.

d. Unipennate: This describes a muscle with fibers on one side of a tendon. An example is the extensor digitorum longus. The orbicularis oris does not have this structure.

In summary, the orbicularis oris is best described as a circular muscle.

Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
The procedure used in placing a prisoner in administrative or disciplinary segregation depends on the existence of which of the following? The correctional officer's discretion The Eighth Amendment The offense committed by the prisoner A protected liberty interest
failedAnswered
Which of the following sex and generation combinations most directly produces the integument of a pine seed? male sporophyte female gametophyte female sporophyte male gametophyte
failedAnswered
Determine the quadratic function of the form f(x)=a(x-h)^2+k whose graph is given on the right. f(x)=
failedAnswered
Question 4 2 pts What is one way in which psychology samples tend to be unrepresentative of the world population? They tend to be from warm climates. They tend to have a short attention span. They tend to be from North America. They tend to be high school students. They tend to be mostly male.
failedAnswered
Simplify. Use the distributive property to remove the parentheses. Then, combine like terms. 2(5-x)-2(-6-9x)