Midterm - Lab Flashcards
Antagonist Extension
Flexion
Antagonist Supination
Pronation
Antagonist Inversion
Eversion
Antagonist plantarflexion
Dorsiflexion
Which muscles are involved in the flexion of the vertebral column (which ones are not?)
Muscles that flex the vertebral column
Rectus Abdominis External Oblique Internal Oblique Psoas / Iliacus (with insertion fixed) Muscles of the spine are not involved, it is the abdominals involved in flexion, Spine is responsible for extention / upright
Which muscles are involved in the rotation of the vertebral column (which ones are not?)
External Obilque (opposite side) Internal Oblique (same side) Multifidi / Rotatores (Opposite side)
Insertion of longissimus capitis
Lower 9 ribs, Transerse process all the way to Mastoid Process
Order of the erector spinae group from medial to lateral
Iliocostalis, Longissimus, Spinalis
Semispinalis capitis insertion
Between the superior and inferior nuchal lines of the occiput
Suboccipital muscles that rock and tilt the head back into extension
Rectus Capitis Posterior Major
Rectus Capitis Posterior Minor
Obliquus Capitis Superior
Suboccipital actions
Rock and tilt the head back into extension (except Obilquus capitis inferior)
Rotate head to same side Rectus Capitis Posterior Major, Obliquus Capitis Inferior
Rectus capitis posterior major and oblique capitis actions
Rotate head to the same side
Quadratus lumborum origin and insertion
O: Posterior Iliac Crest
I: 12th Rib, Transverse Processes of L1-L4 Vertebrae
Internal oblique actions
Laterally flex to one side (Unilaterally)
Rotate the vertebral column to the same side (unilaterally)
Flex the vertebral column (bilaterally)
Compress abdominal contents (bilaterally)
Internal intercostals actions
Pulls Ribs inferiorly to decrease space of thoracic cavity
Intertraversarii origin and insertion
Cervical: Spans transverse processes of C2-C7
Lumbar: Spans transverse processes of L1-L6
Inserts into the transverse process direction above
Rectus abdominus actions
Flexion of the vertebral column
Posteriorly tilt the pelvis
Transverse abdominus insertion
Abdominal aponeurosis to linea alba
Serratus posterior inferior actions
Depress ribs during exhalation
Longissimus origin and insertion
O: Thorocolumbar Aponeurosis
I: Lower 9 ribs, Transerse process all the way to Mastoid Process
Oblique capitis superior and oblique capitis inferior same attachment site
Obliquus Capitis Inferior Inserts at the Transverse process of C1
Obliquus Capitis Superior Originates at the Transverse process of C1 (Atlas)
Rectus femoris origin
AIIS
Quadriceps insertion
Tibial Tuberosity
Tilting of the pelvis by the hamstrings
Posterior tilt
Muscles of the pes anserine tendon
Sartorius, Gracilis, Semitendinosus
Glute maximus actions
Abduct the hip
Laterally rotate the hip
Extend the hip
Lower Fibers: Adduct the hip
Actions of gracilis vs adductor group
Gracilis is the only adductor to cross the kneecap so it is the only adductor to:
Medially rotate the knee when flexed
Flex the knee
(Along with the other adductors it is involved in Adduction and Medial rotation of the HIP, but it is not involved in assisting the flexion of the hip)
Structures that make up the femoral triangle
Inguinal Ligament, Adductor Longus, Sartorius (I Ain’t Scared - IAS)
Actions of the piriformis
One of the 6 Lateral rotators
Laterally rotate the hip
Abduct the hip when the knee is flexed
Diaphragm nerve innervation
Phrenic Nerve
Hamstrings origin
Ischial Tuberosity (and the Lateral lip of lines aspera for the Short head of Biceps Femoris)
Rectus femoris actions
Extend the knee
Flex the hip
Bicep femoris insertion
Head of the Fibula
Glute medius actions
All: Abduct the hip Posterior: Laterally rotate the hip Extend the hip Anterior: Medially rotate the hip Flex the hip
Sartorius origin insertion
O: ASIS
I: Pes Anserinus Tendon
(It’s long and does a lot of things)
Psoas major origin insertion
O: Bodies and transverse processes of Lumbar Vertebrae
I: Lesser Trochanter
