__ is a word that means straight. 2 orbicularis __ that encircles the lips and enables them to pucker, as in a kiss, is the 3. The __ muscle, named for its two bellies, opens the mouth. 4. The __ muscles diverge like a V from the middle of the upper thorax to behind the ears. 5. The largest muscle of the upper back is the __ 6. Name two neck muscles __ __ 7. Name two abdominal muscles __ __ 8. Name two back muscles __ __

## Step 1
The first blank is asking for a word that means "straight". The word "rectus" is a Latin term that translates to "straight" in English. It is commonly used in anatomical terminology to describe muscles that run straight along the body.

## Step 2
The second blank is asking for a word that means "encircles". The word "orbicularis" is a Latin term that translates to "encircles" in English. It is used in anatomical terminology to describe muscles that form a circular shape around a body part.

## Step 3
The third blank is asking for the name of a muscle that opens the mouth. The "digastric" muscle is a two-bellied muscle located in the neck that opens the mouth when it contracts.

## Step 4
The fourth blank is asking for the name of muscles that diverge like a V from the middle of the upper thorax to behind the ears. The "deltoid" muscles are a group of muscles located on the shoulder that fit this description.

## Step 5
The fifth blank is asking for the name of the largest muscle of the upper back. The "latissimus dorsi" is the largest muscle in the upper back.

## Step 6
The sixth blank is asking for the names of two neck muscles. The "sternocleidomastoid" and "splenius capitis" are two muscles located in the neck.

## Step 7
The seventh blank is asking for the names of two abdominal muscles. The "rectus abdominis" and "transversus abdominis" are two muscles located in the abdominal region.

## Step 8
The eighth blank is asking for the names of two back muscles. The "erector spinae" and "rhomboid major" are two muscles located in the back.