Lesson 4: Muscles and bones of the abdomen and pelvis Flashcards
Identify the following from the picture of the pelvic bone: 1, 2, 3, 4, 10, 11, 14, 15, 16.
Identify the following from the picture of the femur: 1, 2, 3, 4, 5, 6, 7, 9, 10.
Name the 3 lateral muscles from superficial to deep.
- External obliques
- Internal obliques
- Transverse abdominis
Name the 2 medial muscles.
- Rectus abdominis
2.
How do weak abdominal muscles contribute to lower back pain?
A strong core, especially obliques and Transvers abdominis (TA) will spread hte weight of the upper body around the waist. If these muscles are weak the weight will travel predominantly through the lumbar region.
How does muscle activity change when we go from normal breathing to forced breathing?
Normal breathing uses the diaphragm and intercostals. During forced breathing any musclke that has the ability to lift the ribs can be used. Eg. pectoralis minor, levator scapular, serrated anterior.
What are the primary hip flexors?
- Psoas major
- Iliacus
- Femoris
What are the primary lateral hip rotators?
- Gluteus maximus
- PGOGOQ complex (do not need to remember individual names of these muscles).
How does Tensor fascia latae act as a postural muscle?
The fascia late is a band of connective tissue that surrounds the whole leg. It thickend laterally into the ITB which crosses the knee. The tensor fascia latae tenses this band supporting the knee when it is lockes.
What is the primary hip extensor?
Gluteus maximus
How do Gluteus Maximus and gluteus medius/minimus act as antagonists?
They rotate the hip in different directions. Gluteus Maximus rotates laterally and gluteus minimus rotates medially.
Name 1. 2. 3. from the picture below. What are the insertion points for the 3 muscles?
- Gluteus maximus - inserts into the gluteal tuberosity and ITB.
- Gluteus medius - Begins at the iliac crest.
- Gluteus minimus - inserts into the greter trochanter, begins midway down the ilium.
