측두근

[문형철]

근방추가 많은 측두군(temporalis)

1. TM joint의 움직임을 담당하는 교근, 내외측익돌근, 측두근 중 측두근과 교근에 근방추가 많음. 

2. 측두근은 저작근이면서 스피치 근육임

3. 저작근인 교근과 측두근은 안면신경이 아니라 삼차신경의 지배

4. 치아와 eyebrow에 연관 통

5. suboccipital releasing하면서 항상 살펴야 하는 근육!!

직관적으로 파악한 것

temporalis와 lateral pterygoid muscle이 짝힘을 이루고 있다는 사실!

Abstract

Histological study of the human jaw muscle revealed that the temporal muscle displayed 342 muscle spindles, 208 in the horizontal and 134 in the vertical portion; the masseter muscle contained 114 spindles, 91 in the superficial and 23 in the profound portion; the medial pterygoid muscle had 59; and the lateral pterygoid muscle contained 6, four in the upper head and two in the lower head. These data suggest that the extensive mobility of the temporomandibular joint, and the maintenance of mandibular posture during mastication and speech are strongly influenced by proprioceptive mechanisms.

측두근 self stretching

panic bird..

The temporal muscle, also known as the temporalis, is one of the muscles of mastication. It is a broad, fan-shaped muscle on each side of the head that fills the temporal fossa, superior to the zygomatic arch so it covers much of the temporal bone.^[1]

In humans, it arises from the temporal fossa and the deep part of temporal fascia. It passes medial to the zygomatic arch and inserts onto the coronoid process of the mandible, with its insertion extending into the retromolar fossa posterior to the most distal mandibular molar.^[2] In other mammals, the muscle usually spans the dorsal part of the skull all the way up to the medial line. There, it may be attached to a sagittal crest, as can be seen in early hominins like Paranthropus aethiopicus. The temporal muscle is covered by the temporal fascia, also known as the temporal aponeurosis. The muscle is accessible on the temples, and can be seen and felt contracting while the jaw is clenching and unclenching.

Innervation[edit]

As with the other muscles of mastication, control of the temporal muscle comes from the third (mandibular) branch of the trigeminal nerve. Specifically, the muscle is innervated by the deep temporal nerves.

Blood supply[edit]

The muscle receives its blood supply from the deep temporal arteries which anastomose with the middle temporal artery.

Actions[edit]

If the entire muscle contracts,the main action is to elevate the mandible, raising the lower jaw. Elevation of the mandible occurs during the closing of the jaws. If only the posterior part contracts, the muscle moves the lower jaw backward. Moving the lower jaw backward causes retraction of the mandible. Retraction of the jaw often accompanies the closing of the jaws.^[1]

When lower dentures are fitted, they should not extend into the retromolar fossa to prevent trauma of the mucosa due to the contraction of the temporalis muscle.^[2]

측두근 Trp 탐구

[비누방울]

muscle spindle의 주요기능은 근육의 '길이'변화와 길이변화의 '속도'에 대하여 정보를 주고받는 역할을 한다면,
그리고 이러한 muscle spindle이 측두근에 많은 이유가 턱관절(TMJ) 때문이라면,
턱관절의 속도변화를 주는 움직임과 운동이 측두근 및 턱관절 치료에 도움을 줄 수 있는 치료법이 될 수 있는 것일까요?

[문형철]

턱관절의 속도변화를 주는 움직임과 운동이 측두근 및 턱관절 치료에 도움을 줄 수 있는 치료-- 맞는 말 ㅎㅎㅎ

측두근에 근방추가 많다는 이야기는 턱관절 움직임이 미세조절 움직임, 정교한 움직임이 많이 필요하다는 뜻
그러한 미세조절, 정교한 움직임에 문제가 발생하면 TMJ문제로 전신이 조금씩 틀어질 수 있다는 것이
턱관절로부터 전신자세를 잡을 수 있다는 추론이 출발하지 않았을까? 생각해봅니다 ㅎㅎㅎ