Ribcage

Question 1

How many ribs are there

Answer 1

12

Question 2

The bottom of the pec aligns in what rib

Answer 2

the 5th rib

Question 3

Describe the shape of the top of the ribcage, that attaches to the neck

Answer 3

The top of the ribcage slants forward, “see neck”

Question 4

Describe the back of the Thoracic arch

Answer 4

The thoracic arch curves back

Question 5

Why can we sometimes see the the ribcage

Answer 5

The 10th rib has a sharp corner

Question 6

The ribcage is made up of…

Answer 6

• The Thoracic vertebrae
  
  • 12 pairs of ribs
  • Costal cartilage
  • Sternum

Question 7

describe the movement of the ribs starting from the back

Answer 7

The ribs angle down slightly from the thoracic vertebrae, on the side plane they take a 45° turn downward and when the ribs meet the costal cartilage on the front plane they become horizontal , except the bottom one which curve upward to make the thoracic arch.

Question 8

What parts of the ribs can be seen on people

Answer 8

The lower ribs can be seen on lean and muscular people in the front and back.

Question 9

What is the significance of the 5th rib

Answer 9

• The bottom of the pec aligns with the 5th rib
  
  • The top most digit of the external oblique originates at the 5th rib
  • The first visible digit(the 4th) of the serratus originates at the fifth rib

Question 10

In what circumstances can you see the costal cartilage

Answer 10

You can see the first few costal cartilage on a very lean person with thin muscles

Question 11

Where are the most prominent digits of the serratus

Answer 11

The 6th 7th and 8th ribs

Question 12

What makes up the Thoracic arch

Answer 12

The costal cartilage of the 7th, 8th, 9th, 10th ribs

Question 13

when do the corners of the 10th ribs/Thoracic arch become more prominent

Answer 13

when the model is inhaling or ls leaning back.

Question 14

How do artists usually idealize a female thoracic arch

Answer 14

60° and turning inward

Question 15

How do artist usually idealize a male thoracic arch

Answer 15

90° and turning outward

Question 16

What is the sternum made up of

Answer 16

The manubrium(The handle), the gladiolus(The Blade), and the xiphoid process(The sword)

Question 17

Where do the clavicles attach

Answer 17

at the corners of the manubrium

Question 18

describe the shape of the sternum

Answer 18

It’s thinner at the top than the bottom, on males the tip lands in-between the nipple and bottom of the pec.

Question 19

describe the xiphoid process

Answer 19

The xiphoid process is the size of the tip of the thumb, it can poke out or dig in