Lab 1 (FIRST MIDTERM) Flashcards Preview

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Flashcards in Lab 1 (FIRST MIDTERM) Deck (30):
1

Epaxial muscles refer to the ______ while Hypaxial muscles refer to the _______.

back, front

2

Name the plane on the far left.

frontal/coronal plane

3

Name the plane in the middle.

Name the plane in the middle if it was over to one side instead of directly in the middle.

medial sagittal plane (right in the middle)

parasagittal plane (off the mid-line)

4

Name the plane on the far right.

transverse plane

5

Directional terms:

Cranial/superior vs. caudal/inferior

Toward head vs. toward "tail" or feet

6

Directional terms:

Dorsal vs. ventral

Toward backbone vs. toward belly

7

Directional terms:

Medial vs. lateral

Toward the middle vs. away from midline

8

Directional terms:

Proximal vs. distal

Closer to attachment vs. away from attachment

9

Directional terms:

Superficial vs. deep

Closer to surface vs. away from surface

10

What does the blastocoel contain that eventually becomes you (or a fish, or a chicken, or any chordate)?

inner cell mass

11

Together the ectoderm and the endoderm make...

bilaminar layer

12

Together all three germ layers make...

trilaminar layer

13

What is the "thickening" in the middle of a single layer of epidermal ectoderm?

Specific germ layer?

Neural plate

Specific: neural ectoderm

14

What moves toward each other and creates a neural groove?

neural folds

15

What is created when the neural folds close off?

Specific germ layer?

Dorsal hollow nerve tube

Specific: neural ectoderm

16

What is the general germ layer AND specific germ layer of the notochord?

Mesoderm

Specific: chordamesoderm

17

What is the specific germ layer of the parietal serosa and visceral serosa?

Lateral plate mesoderm

18

What are the little circles at the end of the somites? (they don't have a name so name the specific germ layer)

Intermediate mesoderm

19

What is the very first structure in an embryo?

Notochord

20

3 "types" of somites and a VERY brief description:

Dermatome: skin

Myotome: muscle

Sclerotome: skeleton

21

Specific germ layer of somites:

Paraxial mesoderm

22

Spinal curves

Primary curves (fetus):

Secondary curves (after birth):

Tertiary curves (later):

 

Primary: thoracic and sacral

Secondary: cervical

Tertiary: lumbar

23

How many of each vertebrae?

7 cervical

12 thoracic

5 lumbar

5 sacral

24

CONNECTION TIME!

Where are the vertebrae derived from? (think specifically)

Sclerotome --> Somites --> Mesoderm

25

What does the spinal chord travel through?

Vertebral foramen

26

How can you tell if it's cervical vertebra?

Has transverse foramen 

(also a bifid spinous process)

27

What runs through the transverse foramen?

Vertebral artery

28

How can you tell if it's thoracic vertebra?

They have costal facets that articulate with ribs

29

Atlas vs. Axis

"Atlas spins on its axis"

Atlas: C1 and circle shaped; has little transverse foramen

Axis: C2 and has a dens for Atlas to sit on

30

True ribs:

False ribs:

Floating ribs:

True: have their own cartilage (7 pairs)

False: 5 - 3 "hitch a ride" on true rib and 2 are floating