Anatomy: Mistakes, Test I

Question 0

What divides the smooth and rough surfaces of right atrium? What is the corresponding outside structure?

Answer 0

Cristal Terminalis.

Sulcus Terminalis.

Question 1

What is the ligamentum arteriosum and what is it’s embryological origin?

Answer 1

It is a ligament from the top of the pulmonary artery to the descending aorta. It used to be the “Ductus Arteriosis”.

Question 2

What are the classifications of joints?

Answer 2

1. Fibrous- sutures of skull
2. Cartilaginous- Primary: epiphyseal plate of long bones, Secondary: Sternal Angle
3. Synovial Joints- Uniaxial: Elbow, Biaxial: Wrist, Multiaxial: Shoulder

Question 3

What is the smooth part of the base of the aorta.

Answer 3

Aortic Vestibule.

Question 4

What are the roots of the phrenic nerve?

Answer 4

Ventral Rami of C3-C5.

Question 5

What is the Right Superior Intercostal Vein? What does it drain into?

Answer 5

The 2nd, 3rd and 4th posterior intercostal veins converge to make the Posterior Intercostal Vein. They drain into the azygous vein.

Question 6

At what level do things pass through the Diaphragm?

Answer 6

T8: Caval Opening, IVC and branches of right phrenic nerve.
T10: Esophageal Hiatus, esophagus and L and R vagus nerves
T12: Aortic Opening, Aorta and Thoracic Duct (for lymph)

Question 7

Name things on the first rib.

Answer 7

1. Scalene Tubercle

2. Subclavian Vein/Artery Groove

Question 8

At what vertebral level does the trachea end?

Answer 8

T4/5

Question 9

What artery runs on the posterior side of the sternum? What are its terminal branches?

Answer 9

Internal Thoracic Vein and Artery.

Terminates: 1) Musculophrenic Artery, 2) Superior Epigastric Artery

Question 10

What innervates the Diaphragm?

Answer 10

Phrenic nerve and lower six intercostal nerves.

Question 11

Where is the Greater Splanchnic Nerve? From which ganglia is it derived?

Answer 11

The Greater Splanchnic is a thin nerve that runs close to the spine. It is derived from the T5-T9 thoracic ganglia.

Question 12

Where does the thoracic duct start and where does it train?

Answer 12

Start: L2
Drain: Junction of Left Subclavian and Left Internal Jugular Vein

Question 13

Where does the Teres Major attach and what innervates it?

Answer 13

Inferior lateral edge of scapula. It is innervated by the lower subscapular nerve.

Question 14

What goes through the Quadrangular Space?

Answer 14

Poster Circumflex Vein and Artery.

Axillary Nerve.

Question 15

What passes through the Triangular Space?

Answer 15

Circumflex Scapular Artery

Question 16

What passes through Triangular Interval?

Answer 16

Profunda Brachii and Radial Nerve

Question 17

What do your lumbricals do?

Answer 17

Flex MP joint.

Extend IP joint.

Question 18

What innervates the Adductor Pollicis?

Answer 18

Deep Branch of Ulnar Nerve

Question 19

Dorsal Interossei

Answer 19

O: Metacarpals
I: Proximal Phalanges
Inv: Deep Branch of Ulnar
Act: Abduct, Fexes MP, Extends IP

Question 20

What is the function of the Intercostal Brachial Nerve?

Answer 20

Cutaneous sensory to Axilla.

Question 21

What are the deep flexor muscles of forearm and innervations?

Answer 21

FDP: Ulnar and AIN
Flexor Pollicis Longus: AIN
Pronator Quadratus: AIN

Question 22

What does the Denticulate Ligament attach to?

Answer 22

Dura Mater

Question 23

What innervates the Longissimus?

Answer 23

Primary Dorsal Rami

Question 24

What goes through the spinoglenoid notch?

Answer 24

The suprascapular artery.

Question 25

What is the specific insertion of the biceps?

Answer 25

Posterior Medial Aspect of Radial Tuberosity

Question 26

Where do you do a spinal tap on an adult? A newborn?

Answer 26

Adult: between L3-L4

Newborn: between L4-L5

Question 27

Where does the Conus Medullaris end in an adult? Newborn? 24-weeks and 8-week?

Answer 27

Adult: top of L2
Newborn: bottom of L3
24-weeks: bottom S1
8-weeks: all the way down.

Question 28

Where does the dural sac end in an adult?

Answer 28

S2

Question 29

Where does the filum terminale end in an adult?

Answer 29

1st Coccygeal vertebra