Anatomy Midterm Flashcards
Attachments sites: Splenius Capitis
Inferior: Inferior half of ligamentum nuchae, SPs of C7-T3
Superior: mastoid process of temporal bone and lateral third of superior nuchal line of occipital bone
Attachment points: Splenius Cervicis
Inferior: SPs of T3-T6
Superior: TPs of C1-C3
Attachments: Iliocostalis
Inferior: Arises by a broad tendon from posterior part of iliac crest, posterior surface of sacrum, sacroiliac ligaments, SPs of sacral and inferior lumbar vertebrae
Superior:Lumborum, thoracis, cervicis parts; fibers run superiorly to angles of ribs and TPs of cervical vertebrae
Attachments: Longissimus
Inferior: Same as Iliocostalis
Superior: Thoroacis, cervicis, capitis parts; fibers superiorly to TPs of thoracic and lower nine ribs, TPs of cervical vertebrae as well as to mastoid process of temporal bone
Attachments: Semispinalis
Inferior: TPs of C4-T12; best developed in thoracic and cervical regions
Superior: Occipital bone and SPs in thoracic and cervical regions, spanning 4-6 vertebrae superior to proximal attachment
Attachments: Multifidus
Inferior: Posterior sacrum, articular processes of lumbar, TPs of T1-T12; best developed in lumbar region
Superior: SPs of vertebrae, spanning 2-4 vertebrae superior to superior attachment
Attachments: Rotatores
Inferior: TPs of vertebrae; best developed in thoracic region
Superior: Fibers pass superomedially to attach to junction of lamina and TP or SP of vertebra, spanning 1-2 vertebrae to superior attachment
Attachments: Rectus Abdominus
Inferior: Iliac crest, thoracolumbr fascia, cartilages of ribs 6-12, and inguinal ligament
Superiior: Linea alba with aponeurosis of internal oblique; pubic crest, and pectin pubis
What are the 4 muscles of the Anteriolateral Abdominal Wall Muscles?
Rectus Abdominus
External Oblique
Internal Oblique
Transversus Abdominus
What are the 3 muscles of: Intrinsic Muscles of Back – Transversospinal Muscles (Deep Layer)?
Semispinalis
Multifidus
Rotatores
What are the 3 muscles of Intrinsic Muscles of Back: Erector Spinae (Intermediate Layer)?
Iliocostalis
Longissimus
Spinalis
What are the 2 muscles of Intrinsic Muscles of the Back: Splenius Muscles (Superficial Layer)
Splenius Capitis
enius Cervicis
Attachments Iliacus
Proximal: Superior 2/3 of iliac fossa
Distal: Lesser trochanter of femur
Attachments Psoas Major
Proximal: TPs of lumbar vertebrae; sides of bodies of T12-L5 and intervening intervertebral discs
Distal: Lesser trochanter of femur
Attachments Quadratus Lumborum
Proximal: Medial half of inferior border of 12th rib and tips of lumbar TPs
Distal: internal lip of iliac crest
Tensor Fascia Lata
Proximal: Anterior part of iliac crest
Distal: Iliotibial tract, which attaches to the lateral condyle of tibia
Piriformis
Proximal: Anterior Sacrum
Distal: Superior border of greater trochanter of femur
Obturator Internus
Proximal: Pelvic surface of obturator membrane and surrounding bones
Distal: Medial surface of greater trochanter
Obturator Externus
Proximal: Margins of obturator foramen and obturator membrane
Distal: Trochanteric fossa of femur
Superior Gemellus
Proximal: Ischial spine
Distal: Medial surface of greater trochanter (trochanteric fossa)
Inferior Gemellus
Proximal: Ischial tuberosity
Distal: Medial surface of greater trochanter (trochanteric fossa)
Quadratus femoris
Proximal: Lateral border of ischial tuberosity
Distal: Quadrate tubercle of intertrochanteric crest of femur and area inferior to it
Gluteus Maximus
Proximal: Ilium posterior; dorsal surface of sacrum and coccyx; sacrotuberous ligament
Distal: Most fibers end in iliotibial tract, which inserts into lateral condyle of tibia; some fibers insert on gluteal tuberosity of femur
Gluteus Medius
Proximal: External surface of ilium between anterior and posterior gluteal lines
Distal: Lateral surface of greater trochanter
