Joints & Bony Landmarks
Put these joint classifications in order from least moveable to most moveable:
- Cartilaginous
- Synovial
- Fibrous
Fibrous, Cartilaginous, Synovial
When you shake your head "no", you are performing this movement at the neck
Rotation
The acronym O-PMS is a helpful tool to remember the common characteristics of muscles' origins. What does this acronym stand for?
Origin- Proximal, Medial, Stable
The Erector Spinae Group performs these two actions.
1. Lateral flexion of the vertebral column to the same side
2. Extension of the vertebral column
This is the largest and most posterior of the gluteal muscles.
Gluteus Maximus
The hip is an example of this type of joint
Ball-and-socket
When you do a crunch, you are performing these two movements at the vertebral column
Flexion & Extension
What role is a muscle playing when it is shortening?
Agonist
This abdominal muscle flexes the vertebral column and tilts the pelvis posteriorly
Rectus Abdominis
This gluteal muscle performs every action EXCEPT adduction of the hip.
Gluteus Medius
This bony landmark is defined as "a ridge that doesn't stick up very far"
Line
When you turn your legs out so your patellae (kneecaps) are facing away from each other, you are performing this movement at the hip.
External (Lateral) Rotation
What plane divides the body into left and right sections?
Sagittal
Unilaterally, this muscle laterally tilts the pelvis and flexes the vertebral column to the same side. Its origin is on the posterior iliac crest.
Quadratus Lumborum
This muscle's origin is on the anterior surface of the sacrum, and its insertion is on the superior aspect of the greater trochanter.
Piriformis
This type of joint can perform rotation
Pivot
When you raise up on your tiptoes, you are performing this movement at the ankle
Plantarflexion
What direction describes a movement/position away from the midline of the body?
Lateral
This muscle in the Erector Spinae Group originates from the common tendon and inserts at the transverse processes of the upper five thoracic vertebrae.
Longissimus
This muscle originates from the bodies and transverse processes of the lumbar vertebrae. When the origin is fixed, this muscle flexes and externally (laterally) rotates the hip.
Psoas Major
A fossa is defined a "a basin-like _______ in a bone"
Depression
When you step your foot out to the side, you are performing this movement at the hip
Abduction
What type of muscle contraction produces movement at a joint?
Isotonic
Name this abdominal muscle:
ORIGIN: External surfaces of fifth through twelfth ribs
INSERTION: Anterior part of iliac crest, rectus sheath to linea alba
ACTION: Unilaterally- laterally flex the vertebral column to the same side; rotate vertebral column to the OPPOSITE side
Bilaterally- Flex the vertebral column; compress the abdominal contents
External Oblique
Name this hip muscle:
ORIGIN: Iliac crest, posterior to the ASIS
INSERTION: Iliotibial Tract
ACTION: Flex the hip; medially/internally rotate the hip; abduct the hip
Tensor Fasciae Latae