Thoracic cage
Zoology 3733 with Samsam at University of Central Florida
About this deck
By: Brittany Boaz
Textbook:
Atlas of Human Anatomy: with Student Consult Access (Netter Basic Science)
Created: 2011-03-16
Size: 29 flashcards
Views: 39
Textbook:
Atlas of Human Anatomy: with Student Consult Access (Netter Basic Science)Created: 2011-03-16
Size: 29 flashcards
Views: 39
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How many pairs of ribs are there?
12
Ribs 1-7 are
True ribs
Ribs 8-12 are
False ribs
11th and 12th ribs are
Floating ribs
Single facet, meaning that the ribs only articulate with there own vertebrae, is true for which ribs?
1st, 11th, and 12th ribs.
What is different about the first rib?
It has a scalene tubercle, and 2 grooves for the subclavian artery and lower brachial plexus, and for subclavian vain.
Which rib is rarely fractured and what happens if it is?
The first rib is rarely fractured and poses danger to the vessels if it is fractured.
Which ribs are most commonly fractured?
Middle ribs
What happens in lower rib fractures?
There is damage to the pleura and abdominal viscera (kidney, liver, spleen)
What happens in flail chest?
There are multiple ribs fractured, the thoracic wall moves freeyly (paradoxical) which is very painful, with impaired ventilation.
Cercical rib/ thoracic outlet syndrom
Remnant or develompment of a costal process, causes compression to the subclavian artery and lower brachial plexus. Occurs when rib is attached to cervical vertebrae.
Signs and symptoms of a cervical vertebrae
ischemic pain due to compression of subclavian artery, pain in the ulnar side of forearm and hand, and palpable mass over the clavicle.
Expansion of the thorax is possible due to
1. mobility of costovertebral joints
2. elevation of sternum
3. mobility at manubrio-sternal joint
4.Elasticity of costal cartilages
5. increased kyphosis of thoracic column
What happens to the thoracic cage when we age?
calcification of costal cartilage leads to loss of thoracic cage elasticicty which restricts respiratory movements.
Scalene muscles are innervated by what?
Brachial plexus.
Scalene gap consists of:
brachial plexus and subclavian artery.
Subclavian vein passes infront of what?
The anterior scalene muscle
What passes over the Anterior scalene muscle?
Phrenic N.
Which muscles elevate the thoracic cage?
Scalene muscles, pectoralis major and minor, and sternocleidomastoid.
Costovertebral joints
Joints in which the head of each rib articulates with 2 adjacent vertebrae and the disk between them.
Kyphosis occurs when...
the thoracic and sacral vertebrae are concave anteriorily and therefore the person appears hunched over.
What is the difference in sternum among males than females
Body of the sternum is longer, narrower, and slimmer in males than in females.
sternal puncture
Bone marrow needle bipsy for transplantation or cytologic analysis
Where is sternal puncture done at?
in the midline in the body of the sternum between 2nd and 3rd rib attachments. never try in the lower 2/3 of the sternal body.
What is the function of the intercostal muscles
respiratory muscles which elevate and depress the ribs
intercostal muscles are innervated by
1st- 11th intercostal N.
What is the main respiratory muscle?
Thoracic diaphragm
Coarcation of the Aorta
All intercostal arteries are dilated. arch of aorta has an abnormal narrowing that diminishes the caliber of aortic lumen. Blood supply to the lower limbs decreases and the blood supply to upper limbs increases. may lead to a stroke.
If there is no pulse felt in the femoral artery,
blood supply to the lower limbs has decreased.
About this deck
By: Brittany Boaz
Textbook: Atlas of Human Anatomy: with Student Consult Access (Netter Basic Science)
Created: 2011-03-16
Size: 29 flashcards
Views: 39
Textbook:
Atlas of Human Anatomy: with Student Consult Access (Netter Basic Science)Created: 2011-03-16
Size: 29 flashcards
Views: 39
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“I have been getting MUCH better grades on all my tests for school. Flash cards, notes, and quizzes are great on here. Thanks!”
Kathy
Kathy