Quiz 6 review

Question 1

Put these tissues in order starting with the most undifferentiated:
-myogenic precursor cells
-mesenchymal cells
-myofibril
-myoblast

Answer 1

-mesenchymal cells
-myogenic precursor cells
-myoblast
-myofibril

Question 2

The primitive heart tubes expands into 5 dilated regions, which of them becomes the future right ventricle?

Answer 2

bulbus cordis

Question 3

Which of the following is sandwiched between the amniotic cavity and the yolk sac?
A) endoderm
B) intraembryonic mesoderm
C) extraembryonic mesoderm
D) ectoderm

Answer 3

B) intraembryonic mesoderm

Question 4

The formation of digits from hand plates occurs via the process of…

Answer 4

apoptosis

Question 5

The sclerotome of somites on the right and left fuse to form a ______?

Answer 5

centrum

Question 6

Left and right bronchial buds will give rise to….

Answer 6

lungs

Question 7

The respiratory system develops from which germ layer?

Answer 7

endoderm

Question 8

What is the gut derivative for the ascending colon?

Answer 8

midgut

Question 9

What is the gut derivative for the liver?

Answer 9

foregut

Question 10

What is the gut derivative for the duodenum?

Answer 10

midgut

Question 11

What is the gut derivative for the stomach?

Answer 11

foregut

Question 12

What is the gut derivative for the rectum?

Answer 12

hindgut

Question 13

What is the cranial nerve associated with the 1st pharyngeal arch?

Answer 13

CN V (trigeminal n.)

Question 14

What is the cranial nerve associated with the 2nd pharyngeal arch?

Answer 14

CN VII (facial n.)

Question 15

What is the cranial nerve associated with the 3rd pharyngeal arch?

Answer 15

CN IX (glossopharyngeal n.)

Question 16

What is the cranial nerve associated with the 4th and 6th pharyngeal arch?

Answer 16

CN X (vagus n.)

Question 17

The respiratory diverticula becomes surrounded by ______ to form the bulk of the future lung?

Answer 17

splanchnic mesoderm

Question 18

On day 22 an outgrowth from the foregut produces the ______ ?

Answer 18

respiratory diverticulum

Question 19

The precursor to embryonic folding is massive expansion and growth of which structure?

Answer 19

amnion

Question 20

The absence of a limb in a fetus is known as

Answer 20

amelia

Question 21

Ossification first starts in the _______ of the upper limb bud?

Answer 21

proximal

Question 22

Limb buds develop from a group of cells within the ______ ?

Answer 22

somatic mesoderm

Question 23

What forms within the septum primum of the embryonic heart?

Answer 23

foramen ovale

Question 24

______ is the formation of new blood vessels by budding or branching from existing vessels?

Answer 24

angiogenesis

Question 25

An apical ectodermal ridge is a feature of the developing:

Answer 25

limbs

Question 26

What muscle is associated with the 1st pharyngeal arch?

Answer 26

masseter (mastication)

Question 27

What muscle is associated with the 2nd pharyngeal arch?

Answer 27

facial expression and stapedius

Question 28

What muscle is associated with the 3rd pharyngeal arch?

Answer 28

stylopharyngeus

Question 29

What muscle is associated with the 4th and 6th pharyngeal arches?

Answer 29

pharyngeal constrictors

Question 30

The maxilla is formed from ______ ?

Answer 30

neural crest

Question 31

Endocardial tubes form within which structure?

Answer 31

cardiogenic mesoderm

Question 32

Which of the following structures will form the dorsal mesenteries of abdomen?
A) ectoderm
B) paraxial mesoderm
C) splanchnic mesoderm
D) endoderm
E) somatic mesoderm

Answer 32

C) splanchnic mesoderm

Question 33

Development of the respiratory system is closely linked to development of the ______ system

Answer 33

digestive