Week 2 Review Picture Cards

Question 1

What function(s) would these cells be good at? What type of epithelium is this (squamous, columnar, stratified, etc.)? What are the structures located at the apical side of the cells?

Answer 1

These cells are good at secretion and transport.

Pseudostratified ciliated columnar epithelium (respiratory epithelium).

Cilia looks like a bad hair day.

Question 2

What type of epithelium is this? What are these cells good at?

Answer 2

Simple squamous. Good at absorption/diffusion of gas

Question 3

What are we looking at?

Answer 3

Dense irregular CT

Question 4

What is this?

Answer 4

Dense regular CT

Question 5

What is this?

Answer 5

Loose CT

Question 6

What are the arrows pointing to?

Answer 6

Basement membrane

Question 7

What stain was used here? What is all the blue stuff?

Answer 7

Trichrome stain - stains connective tissue blue

Question 8

What stain was used here? What are the black lines?

Answer 8

Silver stain - it stains reticular fibers (type III collagen) black

Question 9

Name the structures 1 through 3.

Which muscles do #2 and #3 supply?

Answer 9

1. Axillary artery
2. Lateral thoracic artery - supplies structures in the lateral thorax and breast, including serratus anterior
3. Pectoral branches of the thoracoacromial artery - supplies pectoralis minor and major

Question 10

Which muscle is highlighted? Name its origin, insertion, innervation, and actions.

Answer 10

Pectoralis minor.

Origin: ribs 3-5

Insertion: coracoid process

Action: draws scapula forward, medially, and downward

Innervation: medial pectoral nerve

Question 11

Which muscle is highlighted? Name its origin, insertion, action, and innervation.

Answer 11

Pectoralis major

Origin: clavicle, sternum, upper ribs

Insertion: Lateral lip of the intertubercular groove on the humerus

Actions: flexes, adducts, and medially rotates the arm

Innervation: medial AND lateral pectoral nerves

Question 12

Which muscle is highlighted? Name its origin, insertion, action, and innervation.

Answer 12

Serratus anterior

Origin: ribs 1-8

Insertion: medial border of scapula

Actions: Protracts the scapula, abducts the scapula, upwardly rotates the scapula

Innervation: long thoracic nerve

Question 13

Name these two structures.

Answer 13

1. Lateral pectoral nerve
2. Medial pectoral nerve

Question 14

What is this called? Which nerve is likely damaged?

Answer 14

Winged scapula - damage to the long thoracic nerve that supplies serratus anterior