Exam 1 Flashcards
Trapezius: Proximal Attachment
External occipital protuberance, ligament nuchae, spinous process C7-T12
Trapezius: Distal Attachment
Scapular spine, acromial process, lateral/distal 1/3 clavicle
Trapezius: Innervation/vasculature
Spinal accessory n. (CN XI), superficial transverse cervical artery
Trapezius: Action(s)
Elevation, superior rotation, adduction of scapula
Latissimus dorsi: Proximal Attachment
Iliac crest, spinous process of T6-T12, ribs, inferior angle of scapula
Latissimus dorsi: Distal Attachment
Medial lip of intertubercular sulcus
Latissimus dorsi: Innervation/vasculature
Thoracodorsal n., Middle subscapular nn. (C6-C8), subscapular a.
Latissimus dorsi: Action(s)
Internal rotation, extension, adduction of glenohumeral joint; accessory muscle for expiration
Rhomboid minor: Proximal Attachment
Spinous process C7-T1
Rhomboid minor: Distal Attachment
Medial border of scapula
Rhomboid minor: Innervation/vasculature
Dorsal scapular n. (C4-C5), dorsal scapular a.
Rhomboid minor: Action(s)
Elevation, inferior rotation, and retraction/adduction of scapula
Rhomboid major: Proximal Attachment
Spinous process T2-T5
Rhomboid major: Distal Attachment
Medial border of scapula inferior to scapular spine
Rhomboid major: Innervation/vasculature
Dorsal scapular n. (C4-C5), dorsal scapular a.
Rhomboid major: Action(s)
Elevation, inferior rotation, and retraction/adduction of scapula
Serratus Posterior Superior: Proximal Attachment
Supraspinatus lig, spinous process C7-T3
Serratus Posterior Superior: Distal Attachment
Superior border of ribs 2-5
Serratus Posterior Superior: Innervation/vasculature
Intercostal n. ventral rami T1-T5, posterior intercostal aa.
Serratus Posterior Superior: Action(s)
Elevate upper ribs; inspiration
Serratus Posterior Inferior: Proximal Attachment
Supraspinous lig. Spinous process T11-T12
Serratus Posterior Inferior: Distal Attachment
Inferior border of ribs 9-12
Serratus Posterior Inferior: Innervation/vasculature
Intercostal n. ventral rami T9-T12, posterior intercostal aa.
Serratus Posterior Inferior: Action(s)
Depress lower ribs; expiration
Splenius capitis: Proximal Attachment
Ligament nuchae, spinous process C7-T3
Splenius capitis: Distal Attachment
Lateral superior nuchal line, mastoid process
Splenius capitis: Innervation/vascualture
Dorsal rami of C2-C3, occipital a.
Splenius capitis: Action(s)
Neck/head extension/bend, ipsilateral side bend/rotation of head
Splenius cervicis: Proximal Attachment
Spinous process T3-T6
Splenius cervicis: Distal Attachment
Transverse process C3-C6
Splenius cervicis: Innervation/vasculature
Dorsal rami of spinal nn., occiptal a., posterior intercostal a.
Splenius capitis: Action(s)
Neck extension/bend, ipsilateral side bend/rotation of neck
Iliocostalis Lumborum: Proximal/Distal Attachments
Proximal: Lateral erector spinae, iliac crest
Distal: Inferior border of angle of rib 6-7
EXPIRATION
Iliocostalis Thoracis: Proximal/Distal Attachments
Proximal: Superior angle of ribs 7-12, medial tendon of lumborum
Distal: Superior angle of ribs 1-6, C7 transverse process
EXPIRATION
Iliocostalis Cervicis: Proximal/Distal Attachments
Proximal: Superior angle of ribs 3-6
Distal: Posterior tubercle of transverse process C4-C6
Iliocostalis: Action(s)
Bilateral back extension/bend, Unilateral ipsilateral back side bend/rotation L/R
Longissimus Thoracis: Proximal/Distal Attachments
Proximal: erector spinae, thoracolumbar fascia, transverse/maxillary process of lumbar vertebra
Distal: Transverse process of all thoracic vertebrae, lower 10 ribs tubercles/angles`
Longissimus Cervicis: Proximal/Distal Attachments
Proximal: Transverse process T1-T5
Distal: Posterior tubercle of transverse process C2-C6
Longissimus Capitis: Proximal/Distal Attachments
Proximal: Transverse process C4-T5
Distal: Mastoid process
Longissimus: Action(s)
Bilateral back extension, head/neck extension ipsilateral back side bend/rotation; ipsilateral rotation of neck/head
Spinalis Thoracis: Proximal/Distal Attachments
Proximal: L2 spinous process
Distal: spinous process of thoracic vertebrae
Spinalis Cervicis: Proximal/Distal Attachments
Proximal: Spinous process T1-T2; ligament nuchae
Distal: spinous process C1-C4
Spinalis Capitis: Proximal/Distal Attachments
Proximal: Spinous process C7 and T1
Distal: superior nuchal line with semispinalis (merges)
Spinalis: Action(s)
Back extension; ipsilateral back side bend/rotation
Multifidi: Proximal Attachment
Sacrum (only muscle to attach posteriorly here), posterior superior iliac spine (PSIS), sacroiliac ligament, lumbar mamillary process, transverse process T12-C4
Multifidi: Distal Attachment
Lateral aspect and tips of the spinous process of vertebrae 2-5 levels above until C2 (only muscle in laminar groove below L2)
Multifidi: Action(s)
Back extension, ipsilateral back side bend, contralateral rotation
Semispinalis Thoracis: Proximal/Distal Attachments
Proximal: Transverse process T6-T10
Distal: Spinous process T4-T6
Semispinalis Cervicis: Proximal/Distal Attachments
Proximal: Transverse process T1-T6
Distal: Spinous process C2-C5
Semispinalis Capitis: Proximal/Distal Attachments
Proximal: Transverse process of C7-T7, articular process C4-C6
Distal: Between superior/inferior nuchal line, deep to trapezius (C2 pierces capitis for dermatome: greater occipital n.)
Semispinalis: Action(s)
Back extension, ipsilateral back side bend, contralateral rotation, (cervicis/capitis: head extension, ipsilateral head side bend, contralateral head rotation)
Rotator Longus/Brevis: Proximal/Distal Attachments
Proximal: Transverse process T2-T12
Distal: spinous process: 1 level up (brevis), 2 levels up (longus)
Rotator Longus/Brevis: Innveration/vasculature
Dorsal rami, posterior intercostal aa.
Rotator Longus/Brevis: Action(s)
Back extension, ipsilateral side bend, contralateral rotation
Intertransversarii: Proximal/Distal Attachments
Proximal: Transverse process inferior vertebra
Distal: transverse process superior vertebra
Rectus capitis posterior minor: Proximal/Distal Attachments
Proximal: posterior tubercle of atlas
Distal: medial inferior nuchal line
Rectus capitis posterior minor: Innervation/vasculature
Distal rami of C1 (suboccipital n.), vertebral/occipital a.
Rectus capitis posterior minor: Action(s)
Head extension
Rectus capitis posterior major: Proximal/Distal Attachments
Spinous process of axis
Distal: Lateral inferior nuchal line
Rectus capitis posterior major: Innervation/vasculature
Dorsi rami of C1 (suboccipital n.), occipital a.
Rectus capitis posterior major: Action(s)
Head extension, ipsilateral rotation
Obliquus capitis inferior: Proximal/Distal Attachments
Apex of axis spinous process
Distal” Transverse process of atlas
Obliquus capitis inferior: Innervation/vasculature
Dorsal rami C1 (suboccipital n.), vertebral/occipital a.
Obliquus capitis inferior: Action(s)
Neck extension, ipsilateral side bend/rotation
Obliquus capitis superior: Proximal/Distal Attachments
Proximal: Transverse process of atlas
Distal: between superior and inferior nuchal line
Obliquus capitis superior: Innveration/vasculature
Dorsal rami C1 (suboccipital n.), vertebral./occipital a.
Obliquus capitis superior: Action(s)
Head extension, ipsilateral side bend, contralateral rotation
Suboccipital Triangle: Boundary
Medial: rectus capitis posterior major
Lateral: Obliquus capitis superior
Inferior: Obliquus capitis inferior
Suboccipital Triangle: Innervation/vasculature
Greater occipital n. (C2 sensory only), vertebral a.
Suboccipital Triangle: Contents/pathologies
Contents: Suboccipital n. dorsal rami C1
Pathologies: Headache: greater occipital neuralgia/cervicogenic headache
Gluteus Maximus: Proximal/Distal Attachments
Proximal: Ilium, posterior sacrum, coccyx
Distal: Posterior aspect of IT ban; gluteal tuberosity of femur
Gluteus Maximus: Innervation/vasculature
Inferior gluteal n./inferior gluteal a.
Gluteus Maximus: Action(s)
Extends thigh, lateral rotation of hip, stabilizer of hip
Gluteus Medius: Proximal/Distal Attachments
Proximal: external ilium
Distal: Lateral aspect of greater trochanter
Gluteus Medius: Innervation/vasculature
Superior gluteal n./superior gluteal a.
Gluteus Medius: Action(s)
Abducts hip, medial rotation of thigh, pelvic stabilizer
Gluteus Minimus: Proximal/Distal Attachments
Proximal: External ilium
Distal: anterior aspect of greater trochanter
Gluteus Minimus: Innervation/vasculature
Superior gluteal n./superior gluteal a.
Gluteus Minimus: Action(s)
Abducts hip, medial rotation of thigh, pelvic stabilizer
Tensor Fasciae Latae: Proximal/Distal Attachments
Proximal: Lateral aspect of iliac crest, tubercle of crest
Distal: IT band
Tensor Fasciae Latae: Innervation/vasculature
superior gluteal n./ lateral circumflex femoral a.
Tensor Fasciae Latae: Action(s)
Knee stability, medial/lateral thigh rotation
Piriformis: Proximal/Distal Attachments
Proximal: Anterior sacrum
Distal: greater trochanter
Piriformis: Innervation
Nerve to piriformis
Piriformis: Action(s)
Abducts flexed femur, lateral rotation of extended femur
Obturator Internus: Proximal/Distal Attachments
Proximal: anterior pelvis wall, deep surface of obturator membrane
Distal: greater trochanter
Obturator Internus: Innervation
Nerve to obturator internus
Obturator Internus: Action(s)
Abducts flexed femur, lateral rotation of extended femur
Superior Gemellus: Proximal/Distal Attachments
Proximal: External surface of ischial spine
Distal: Obturator internus tendon, greater trochanter
Superior Gemellus: Innervation
Nerve to obturator internus
Superior Gemellus: Action(s)
Abduct flexed femur, lateral rotation of extended femur
Inferior Gemellus: Proximal/Distal Attachments
Proximal: upper ischial tuberosity
Distal: Inferior obturator internus tendon, greater trochanter
Inferior Gemellus: Innervation
Nerve to quadratus femoris
Inferior Gemellus: Action(s)
Abduct flexed femur, lateral rotation of extended femur
Quadratus Femoris: Proximal/Distal Attachments
Proximal: Lateral aspect of ischium
Distal: Quadrate tubercle on intertrochanteric crest of femur
Quadratus Femoris: Innervation
Nerve to quadratus femoris
Quadratus Femoris: Action(s)
Lateral rotation of femur
Sartorius: Proximal/Distal Attachments
Proximal: Anterior superior iliac spine (ASIS)
Distal: Medial surface of tibia
Sartorius: Innervation/vasculature
Femoral a./n.
Sartorius: Action(s)
Flex, abduct, and laterally rotate thigh; flex leg
Iliopsoas: Proximal/Distal Attachments:
Proximal: Combines with psoas major and iliacus mm. at L5-S2
Distal: Lesser trochanter
Iliopsoas: Innervation/vasculature
Femoral n., ventral rami L1-L3/ Iliolumbar a., femoral a.
Iliopsoas: Action(s)
Flexion, lateral rotation of thigh; Flexion of trunk at hip
Pectineus: Proximal/Distal Attachments
Proximal: Pectineal line of pubis
Distal: Posterior, proximal femur
Pectineus: Innervation/vasculature
Femoral n., some obturator n./Medial circumflex a.
Pectineus: Action(s)
Adduct and flex thigh
Obturator Externus: Proximal/Distal Attachments
Proximal: External surface of obturator membrane
Distal: Trochanteric fossa
Obturator Externus: Inervation/vasculature
Obturator n., a., and medial circumflex aa.
Obturator Externus: Action(s)
Laterally rotate thigh
Gracilis: Proximal/Distal Attachments
Proximal: Body of pubis, inferior pubic ramus, ischial ramus
Distal: Medial surface of proximal tibia
Gracilis: Innervation/vasculature
Obturator n., a., medial circumflex a.
Gracilis: Action(s)
Adduct thigh, flex knee
Adductor Longus: Proximal/Distal Attachments
Proximal: External pubis, lateral pubic symphysis
Distal: Linea aspera
Adductor Longus: Innervation/vasculature
Obturator n., a., medial circumflex a.
Adductor Longus: Action(s)
Adduct and medially rotate thigh
Adductor Brevis: Proximal/Distal Attachments
Proximal: External pubic surface, inferior pubic ramus
Distal: Posterior proximal femur, upper linea aspera
Adductor Brevis: Innervation/vasculature
Obturator n., a., medial circumflex a.
Adductor Brevis: Action(s)
Adduct and medially rotate thigh
Biceps Femoris: Proximal/Distal Attachments
Proximal: LH-ischial tuberosity SH-lateral lip of linea aspera
Distal: head of fibula
Biceps Femoris: Innervation/vasculature
LH-tibial division of sciatic n.
SH-common fibular division of sciatic n.,
Both supplied by profunda femoris a., inferior gluteal a., branches of popliteal a.
Biceps Femoris: Action(s)
LH-extend thigh
Both flex and laterally rotate leg
Semitendinosus: Proximal/Distal Attachments
Proximal: Ischial tuberosity
Distal: pes anserinus
Semitendinosus: Innervation/vasculature
Tibial division of sciatic n./profunda femoris a., inferior gluteal a., popliteal a.
Semitendinosus: Action(s)
Extend thigh, flex and medially rotate leg
Semimembranosus: Proximal/Distal Attachments
Proximal: Ischial tuberosity
Distal: Medial/posterior surface of medial tibial condyle
Semimembranosus: Innervation/vasculature
Tibial division of sciatic n./ profunda femoris a., inferior gluteal a., popliteal a.
Semimembranosus: Action(s)
Extend thigh, flex and medially rotates leg