Describe the muscle feature that is being used in each naming scenario. for example, you have probably figured out that trapezius and rhomboids are named for their shapes. the trapezius muscle is shaped like a trapezoid and the rhomboids are shaped like rhombuses. see if you can find a pattern in the remaining pairs. work together to create a list of muscle features used in naming. report your findings in your laboratory journal.

1.Gluteus maximus and Gluteus minimus

This muscles are classified by their size. Maximus means the largest of the group, which is correct because the others are small and medium sized). Gluteus minimus is the smallest of the group.

2.Frontalis and Temporalis

The frontalis and the temporalis muscles are classified by their location. Frontalis is front of the frontal bone of the skull; It serves for facial expressions, raising eybrows.

Temporalis is located on top of the temporal bone of the skull; Is able to move the tmandible.

3. Orbicularis Oculi and Transverse abdominis:

These muscles are far away from each other but they were named based on the same feature: the direction of fibers.

Orbicularis is because their fibers form a circle.
Transverse because crosses or 'traverses' the abdomen

4.Flexor Carpi Ulnaris and Extensor digitorum longus

These muscles are classified by what they do- their action.

Flexor carpi ulnaris flexes the hand at the wrist while the extensor digitorium longus extends the foot and toes upward.

5. Sternocleidomastoid and Brachioradialis

These muscles are named based on their origin and insertion.

Sternocleidomastoid has two origins, one in the sternum and the other in the collare bone (clavicle). It's insertions is in the mastoid process of the temporal bone.

Brachioradialis has an origin on the brachium of the humerus and it's insertion  is on the radius.

6. Biceps Brachii and Triceps Brachii

These muscles, with opposite functions, are named based on their number of origins.

Biceps brachii has two origins on the scapula that join to form a single muscle which is attached to the forearm

Triceps brachii has three origins on the humerus and joint to form one single muscle that attaches to the ulna.

what are the choices?

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