Human Bio - Chapter 11 Study Guide

The largest muscle of the upper back is the _____.

Trapezius

Ejaculation results from contraction of the ______ muscle.

bulbospongiosus

The word _____ in a muscle name indicates a function related to the head.

capitis

The _____ muscle, named for its two bellies, opens the mouth.

digastric

Within a given muscle, which of these connective tissues is deepest?

endomysium

The prime mover of spinal extension is the _____.

erector spinae

Any muscle that moves the toes but whose belly is in the leg would be considered a/an _____ muscle of the foot.

extrinsic

Which of these is NOT a suprahyoid muscle?

genioglossus

As its name implies, the _____ nerve controls several muscles of the tongue.

hypoglossal

The thyrohyoid muscles attaches to the thyroid cartilage of the _____.

larynx

Which of these muscles of the pelvic floor is the deepest?

levator ani

The abdominal aponeuroses converge on a median fibrous band on the abdomen called the ___

linea alba

The rhomboid muscle depicted in figure 11.20 would be classified as _____ muscles.

parallel

The _____ produces lateral grinding movement of the jaw.

pterygoids

Which of the following muscles is an antagonist of the erector spinae?

rectus abdominis

All of the following muscles act on the vertebral column except...

serratus posterior superior

Which of these muscles is an extensor of the neck?

splenius capitis

The ____ muscle diverge like a V from the middle of the upper thorax to attachments behind the ears.

sternocleidomastoid

A muscle that aids in chewing without moving the mandible is...

the buccinator

The anterior half of the perineum is a region called the ___

urogenital triangle