What is the action of longus capitis?
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What is the action of longus capitis?
The longus capitis muscle is responsible for much of the neck’s mobility. It allows the neck to twist and flex. When the neck muscles contract to initiate a movement, the head is also moved. With the longus capitis muscle, a person can turn his or her head in one direction by moving the neck.
Which of the following muscles are antagonists?
The muscle that is contracting is called the agonist and the muscle that is relaxing or lengthening is called the antagonist….Antagonistic muscle pairs.
| Joint | Shoulder |
|---|---|
| Antagonistic pair | Latissimus dorsi; deltoid |
| Movements produced | Adduction; abduction |
| Sport example | Golf swing; breaststroke arms |
What type of muscle is longus capitis?
deep anterior neck muscle
Longus capitis is a deep anterior neck muscle that runs in front of the cervical spine. Together with rectus capitis anterior, rectus capitis lateralis, longus cervicis and anterior scalene muscle, it makes the prevertebral layer of neck muscles.
What is the anatomical action of the longus capitis and longus colli?
The longus capitis muscle works synergistically with longus colli and scalene muscles as a weak flexor of the head and cervical spine. The action of the muscle is assisted by gravity and by the powerful sternocleidomastoid muscles.
What Innervates rectus capitis anterior?
Innervation. This muscle is innervated by the anterior rami of spinal nerves C1 and C2. The anterior rami of these nerves are connected by a communicating branch, from which the nerves to rectus capitis anterior muscle stem.
Which of the following is an action of the longus colli?
The longus colli muscle (‘long muscle of the neck’) is also known as longus cervicis since it spans the entire cervical spine and the first three thoracic vertebrae. By acting on the cervical vertebrae, longus colli is responsible for forward and lateral flexion of the neck, as well as rotation of the neck.
What is the innervation of longus colli?
The longus colli muscle is a prevertebral muscle of the neck that is innervated by the anterior rami of C2-C6 from the cervical plexus. Longus colli is a weak flexor the cervical spine and when contracting unilaterally it tilts and rotates the cervical spine to the ipsilateral side.
What are the antagonistic muscle pairs?
Muscles that work like this are called antagonistic pairs. In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens….Antagonistic muscle pairs.
| Biceps | Triceps |
|---|---|
| Hamstrings | Quadriceps |
| Gluteus maximus | Hip flexors |
| Gastrocnemius | Tibialis anterior |
| Pectoralis major | Latissimus dorsi |
Which two pairs of muscles are antagonistic pairs?
Muscles that work like this are called antagonistic pairs. In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens….Antagonistic muscle pairs.
| Biceps | Triceps |
|---|---|
| Gastrocnemius | Tibialis anterior |
| Pectoralis major | Latissimus dorsi |
What are antagonistic muscles give one example?
Antagonistic muscles are those muscles which produce movements in an antagonistic pair of muscles by opposing the movement of the agonistic muscle . i.e. when one contacts the other relaxes and vice versa. Example- biceps and triceps, quadriceps and hamstrings.
What Innervates rectus capitis lateralis?
Innervation. Motor innervation to rectus capitis lateralis is provided by branches of the anterior rami of the first two cervical spinal nerves (C1-C2).
What Innervates the rectus capitis posterior major?
Innervation. Rectus capitis posterior major muscle, along with the other suboccipital muscles and semispinalis capitis, are innervated by suboccipital nerve (the first cervical posterior ramus).
What nerve Innervates the deep neck flexors?
Sternocleidomastoid functions bilaterally to create neck flexion and unilaterally to create ipsilateral lateral flexion and contralateral rotation. The SCM is innervated by a spinal root of the accessory nerve (Cleland, 2005).
