Muscles Of The Abdomen And Thorax Flashcards
Muscles in thorax involve ____
Breathing
The thoracic cavity and abdominal cavity separated by the ____
Diaphragm
The muscle in anterior abdomen involve posture and prtection to impact
T or F
True
The muscle of the posterior abdominal wall contribute. Both spinal stabilityband hip flexion
True
___span the spaces between adjacent ribes
Intercostal muscles
What are the 3 types of intercostal
External
Internal
Innermost
it divides in thoracic and abdominal cavity
Diapragm
The function is respiration
Diaphragm
What is the shape in the anterior view of diap?
Parachute or bell shaped
The interior view of diaph?
Large central tendon of diaph.
In is dominated by rectus abdomid which is covered sheet connective tissue called the rectus sheath
Anterior view
On the___ of abdomen, the external oblique form____ layer
Side
Superficial
While the internal oblique musclr form ___ and ____abdominis form____layer
Middle layer
Transeversus
Deepest
It is a view that the abdomen contribute to both lumbar and hip movement
Posterior wall
Outermost layer of abdominal muscles with fibers running inferomedially
External abdominal oblique
Intermediate layer of abdominal muscles with superomedial fibers
Internal abdominal oblique
Deepest layer of abdominal muscles, fibers run transversely
Transeverus abdominis
Superficial abdominal muscle that runs along the middle of the abdomen
Rectus abdominis
Posterior abdominal muscle, comes together with iliacus to become a major hip flexor-iliopsoas
Psoas major
Comes together with psoas major to become a major hip flexor-iliopsoas
Illacus
Deep layer of muscle forming the posterior wall of the abdomen
Quadratus lumborum
Origin: lower ribs
External abdominal oblique
Illiac credt and thoracolumnbal aponeurosis
Internal
Iliac crest and thoracolumbar aponeurosis
Transeversus abdominis
Lumbar vertebrae
Pasoas major
Iliac creast
Quadratus lumborum
Pubic symphysis
Rectus abdominis
Anterior illium
Iliacus
Insertion: transverse processes of lumbar vertebra
Quadratus lumborum
Lesser trochanter of the femur
Psoas major and illacus
Costal cartilage and abdominal aponeurosis
Internal abdominal oblique
Pubis and abdomnal aponeurosis
Transverus abdominis
Costal cartilage
Rectus abdominis
Pubis and abdominal aponeurosis
External abdominal oblique
Flexion,lateral flexion and rotation of trunk
External and internal abdominal oblique
Compress abdomen
Transversus abdomins
Flextion of hip and thrunk
Psoas major
Flextion of trunk
Rectus abdominis
Flextion of hip and thrunk
Iliacus
Lateral flexion of the trunk
Most important in breathing musclr separates the thorax form abdomen
Diaphragm
Most external layer of muscles between the ribs, fibers are oriented inferomedially
External intercostals
Middle layer of muscles between the ribs, fibers are oriented superomedially
Internal intercostals
Deepest layer of muscles between the ribs, the fibers are horizontal
Innermost intercostals
Costal cartilages and lumbar vertebrae
(1) Central tendon of the diaphragm
Diaphragm
(0) Inferior margins of ribs
(1) Superior margins of ribs
Internal and external intercostals
Costal grooves of ribs
(I) Superior border of rib below
Innermost intercostals
Depress and draw the ribs together during expiration
Internal intercostals
Depresses the central tendon to create more space ih the thorax during inspiration
Diaphragm
Assist the internal intercostals during expiration
Innermost intercostals
Elevates ribs during inspiration
External intercostals
center of abdomen; compresses abdomen
Rectus abdominis
sides of abdomen; compresses abdomen
External oblique
compresses abdomen
Internal abdominal oblique
compresses abdomen
Transverse abdominis
What are the abdominal wall of muscles
Rectus abdominis
External abdo oblique
Internal abdo oblique
Transverse abdomins
Most important in breathing. Separate thorax and abdomen
Diaphragm
Most external layer between ribs. Inferokedially
External intercostals
Middle layer of muscles between ribs. Superomedially
Internal intercostals
Deepest layer. Horizontal
Innermost intercostals
Deepest layer. Horizontal
Innermost intercostals