Lecure 3.1 Flashcards Preview

Human Locomotor Systems > Lecure 3.1 > Flashcards

Flashcards in Lecure 3.1 Deck (19):
1

The two bony projections of the Troclea notch are:

Olceranon process - goes into olecranon fossa on humerus

Coronoid process -

2

The head of the Ulna lies ....

distally

3

Label

4

Interosseous membrane is from the _________of the bone

periosteum

5

Fracture of the ulna is more likely at the _____ end

proximal

6

The ______fascia tightly binds down muscles in the arma nd forearm

The antebrachial fascia tightly binds down muscles

7

What is likel to be initially affected by compartment syndrome?

 

Veins and lymphatics

then...

2)Arteries

3) Nerves

8

Label and nerves/vessels and say what the muscles on each side of the cubital fossa?

Pronator teres - medial side

Brachioradialis - lateral side

 

9

True or False

all 3 nerves of the forearm can be found inthe cubital fossa?

 

(what are the 3 nerves)

Median

Ulna

Radial

all 3 can be found in the cubital fossa

10

Flexors are ____ powerful than extensors

skin overlying flexor muscles is ____senesitive

Flexors are more powerful than extensors

skin overlying flexor muscles is more senesitive

11

What are the muscles in the superificla layer of the anterior flexor compartment (forearm)

 

Where do they all arise from?

Pronator teres

flexor carpi radialis

palmaris langus

flexor cari ulnaris

Arise from: Common flexor origin (CFO)

12

What muscle are in the anterior flexor compartment of forearm

Flexor digitorum superficialis

13

deep layer muscles of the anterior flexor compartment?

Flexr pollicis longus

flexor digitorum profundus

pronator quadratus

14

what two muscles together pronate the forearm?

 

 

pronator teres

pronator quadratus

 

 

 

 

15

True or False

 

The median nerve innervates all of the forearm

False

All EXCEPT for 1.5 muscles

 

The flexer carpi-ulnaris - innervated by ulna nerve

Also half muscle:

the medial two heads of the flexor digitorum profundis.

16

True or False

 

All extensors of the forearm originate at the Lateral epicondyle (common extensor origin)

False

Two originate from the supracondylar ridge

brachial radialis -acts as a FLEXOR

17

Label

18

The Radial nerve is suseptible in a ______ shaft fracture,

 

called...

The Radial nerve is suseptible in a humeral shaft fracture,

 

called... Saturday Night palsy

19