sept 27-oct 4 Flashcards by Sasha Lampert

rectus capitis posterior major/minor and obliquus capitis inferior/superior are the 4 What muscles

suboccipital muscles

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suboccipital muscle. attaches SP of C2 to inferior nuchal line

rectus capitis posterior major

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suboccipital muscle. actions: ipsilateral rotation of the head, extend the head on the neck

rectus capitis posterior major

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suboccipital muscle. attaches posterior arch of C1 to inferior nuchal line

rectus capitis posterior minor

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suboccipital muscle. action: extend the head on the neck

rectus capitis posterior minor

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suboccipital muscle. attaches SP of C2 to TVP of C1

obliquus capitis inferior

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suboccipital muscle. action: ipsilateral rotation of the head

obliquus capitis inferior

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suboccipital muscle. attaches TVP of C1 to between superior and inferior nuchal line

obliquus capitis superior

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suboccipital muscle. actions: lateral flexion of head/neck, extension of head on the neck

obliquus capitis superior

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the most lateral 3 suboccipital muscles form what

suboccipital triangle

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suboccipital muscle. forms the inferolateral border of the suboccipital triangle

obliquus capitis inferior

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suboccipital muscle. forms the superolateral border of the suboccipital triangle

obliquus capitis superior

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suboccipital muscle. forms the superomedial border of the suboccipital triangle

rectus capitis posterior major

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floor of the suboccipital triangle

posterior atlanto-occipital membrane

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roof of the suboccipital triangle

semispinalis

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contents of the suboccipital triangle

vertebral artery and suboccipital nerve

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pre-vertebral muscle. attaches lateral mass of C1 to occiput

rectus capitis anterior

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pre-vertebral muscle. action: flexes head on the neck

rectus capitis anterior

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pre-vertebral muscle. attaches TVP of C1 to occiput

rectus capitis lateralis

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pre-vertebral muscle. actions: flexes head on the neck, laterally flexes head on the neck

rectus capitis lateralis

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pre-vertebral muscle. attaches body of T3 to anterior tubercle of C1

longus colli/cervicis

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pre-vertebral muscle. action: neck flexion

longus colli/cervicis

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pre-vertebral muscle. attaches TVPs of C3-C6

longus capitis

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pre-vertebral muscle. action: head/neck flexion

longus capitis

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lateral neck muscle. attaches anterior tubercles of C3-6 TVPs to rib 1

anterior scalene

lateral neck muscle. actions: neck flexion, ipsilateral lateral neck flexion, elevation of rib 1 during forced inhalation, contralateral rotation of the neck (weak)

anterior scalene

lateral neck muscle. attaches posterior tubercles of C2-7 TVPs to rib 1

middle scalene

lateral neck muscle. actions: ipsilateral lateral flexion, elevates rib 2 during forced inhalation

middle scalene

lateral neck muscle. attaches posterior tubercles of C4-6 to the sternum and clavicle

posterior scalene

lateral neck muscle. actions: contralateral rotation of head/neck, neck flexion (if head/neck is neutral or flexed), head extension (if already extended), assists with inspiration

posterior scalene

structure of the body made of the mandible, scm, and midsagittal plane of the neck

anterior cervical triangle

base of the anterior cervical triangle

mandible

lateral border of the anterior cervical triangle

SCM

medial border of the anterior cervical triangle

midsagittal plane of the neck

contents of the anterior cervical triangle

muscles, arteries, veins, lymph nodes, viscera

structure of the body made of the clavicle, SCM, and trapezius

posterior cervical triangle

muscles on the floor of posterior cervical triangle

splenius capitis, levator scapula, posterior scalenes, omohyoid

contents of posterior cervical triangle

blood vessels and nerves

structure of the neck, just inferior to where the pharynx splits into the trachea and esophagus

larynx

structure of the neck. functions in voice production

larynx

structure of the neck. includes the "adam's apple" formed by the thyroid cartilage

larynx

structure of the neck. gland anterior to the trachea, inferior to the adam's apple

thyroid gland

structure of the neck. cartilagenous rings that protect the pharynx and larynx

trachea

structure of the neck. part of the larynx, anterior neck superior to the thyroid cartilage

hyoid bone

muscles that connect the hyoid bone to the skull

suprahyoids

general actions of the suprahyoids

elevate the hyoid bone, assist in depressing the mandible

suprahyoid muscles that attach the hyoid to the mandible

mylohyoid and geniohyoid

suprahyoid muscle. attaches styloid process of the temporal bone to the hyoid

stylohyoid

suprahyoid muscle. attaches inferior border of the mandible to the intermediate tendon to the hyoid

digastric (anterior belly)

suprahyoid muscle. attaches mastoid process (medial side) to intermediate tendon to the hyoid

digastric (posterior belly)

general action of the infrahyoids

depress the hyoid bone

infrahyoid muscle. attaches hyoid bone to manubrium

sternohyoid

infrahyoid muscle. attaches thyroid cartilage to manubrium

sternothyroid

infrahyoid muscle. attaches hyoid bone to thyroid cartilage

thyrohyoid

infrahyoid muscle. two bellies connected by an intermediate tendon

omohyoid

omohyoid belly that attaches to the hyoid bone

superior

omohyoid belly that attaches to the superior border of the scapula, near the suprascapular notch

inferior

area between the diaphragm and the pelvis

abdomen

the dividing lines of the abdomen are where

midsagittal plane and transumbilical plane (across the umbilicus)

anterior muscle of the abdomen. attaches costal cartilages of ribs 5-7 and xiphoid process to the pubic symphysis and crest

rectus abdominus

anterior muscle of the abdomen. actions: spinal flexion (trunk), stabilizing the pelvis during leg-lowering, compressing viscera

rectus abdominus

anterior muscle of the abdomen. attaches ribs 5-12 to linea alba, pubic tubercle, and anterior half of iliac crest

external oblique

anterior muscle of the abdomen. actions: contralateral rotation, ipsilateral lateral flexion, trunk flexion, stabilizing the pelvis during leg-lowering, compress and support viscera

external oblique

fibre direction of external oblique

anterior and inferomedial

anterior muscle of the abdomen. attaches the anterior half of the iliac crest to the linea alba, ribs 10-12

internal oblique

anterior muscle of the abdomen. actions: ipsilateral rotation, trunk flexion, compress and support viscera

internal oblique

fibre direction of internal oblique

anterior, superomedial

anterior muscle of the abdomen. attaches inner iliac crest, lower 6 costal cartilages, thoracolumbar fascia to linea alba

transversus abdominis

anterior muscle of the abdomen. action: compress and support viscera

transversus abdominis

fibre direction of transversus abdominis

medial

abdominal fascia. aponeurotic attachments of the external oblique, internal oblique, and tranversus abdominis form a sheath of connective tissue which encases the rectus abdominis muscle

rectus sheath

abdominal fascia. runs vertically from the xiphoid process to the pubic symphysis

linea alba

abdominal fascia. separates the 2 rectus abominis muscles

linea alba

abdominal fascia. lateral border of the rectus abdominis and its sheath

linea semilunaris

posterior muscle of the abdomen. attaches sides of T12-L5 and associated vertebral disks to lesser trochanter of the femur

psoas major

posterior muscle of the abdomen. action: works with iliacus in hip flexion, flexion of lumbar spine

psoas major

posterior muscle of the abdomen. attaches medial half of rib 12 and TVPs of lumbar vertebrae to the iliac crest and iliolumbar ligament

quadratus lumborum (QL)

posterior muscle of the abdomen. actions: lumbar spine extension, fixes rib 12 during forced expiration, lumbar spine stabilization, ipsilateral lateral flexion (hip hike)

quadratus lumborum (QL)