Skeletal

Question 1

Skull

Answer 1

bone that protects the brain and face. made of multiple bones (not fused before birth)

Question 2

Suture

Answer 2

connective tissue connecting two bones in the skull. Fuse to create solid skull.

Question 3

Fontanelle

Answer 3

Area where two sutures meet. Are a soft area in newborns.

Question 4

Sutures and fontanelles

Answer 4

Allow deformation of head during birth -> odd newborn head shape. Aid early skull growth.

Question 5

Diaphysis

Answer 5

middle portion of long bones

Question 6

Epiphysis

Answer 6

ends of long bones

Question 7

Development of Limb Bones

Answer 7

Cartilage models form (cartilage is softer than bone), cartilage model is replaced by bone, cartilage remandes at ends of bone and at epiphyseal plate

Question 8

Epiphyseal plate

Answer 8

cartilage between diaphysis and epiphysis. Bones is added here to lengthen bones. Becomes replaced by bone at maturity.

Question 9

Cartilage at ends of bone

Answer 9

Provides cushion between bones. Helps bones slide in a joint.

Question 10

Components of digestive system

Answer 10

Pharynx, Esophagus, Stomach, Intestines

Question 11

Pharynx

Answer 11

throat

Question 12

Esophagus

Answer 12

tube from pharynx to stomach

Question 13

Stomach

Answer 13

enlarged area after esophagus

Question 14

Intestines

Answer 14

long tubes from stomach to anus.

Question 15

Small intestine

Answer 15

long, small-diameter intestine

Question 16

large intestine

Answer 16

shorter, large-diameter intestine

Question 17

Gut

Answer 17

digestive tube. Forms by folding at sides, head, tail

Question 18

Gut folding at sides

Answer 18

ectoderm and mesoderm fold toward chest. Folds of mesoderm enclose endoderm. Endoderm forms inside of gut, mesoderm surrounds inside of gut.

Question 19

Foregut

Answer 19

gut at head of embryo. Formed by folding at head and sides. Forms pharynx, esophagus, stomach, beginning of small intestine.

Question 20

Midgut

Answer 20

Gut at middle of embryo. Open to yolk sac. Forms most of small intestine and most of large intestine.

Question 21

Hindgut

Answer 21

gut at “tail” of embryo. Formed by folding at “tail” and sides. Forms end of large intestine.

Question 22

Esophagus

Answer 22

comes from foregut. Starts as short tube. Grows in length.

Question 23

Stomach

Answer 23

comes from foregut. Enlarges to achieve basic shape. Rotates into place, pulls attached organs into place too.

Question 24

Small intestine

Answer 24

from foregut + midgut. Grows too big to fit in torse, so part pushes into umbilical chord.

Question 25

Abdominal cavity

Answer 25

cavity in lower half of torso. Growth provides room for intestines to return into torse. Intestines rotate into final position.

Question 26

Large intestine

Answer 26

comes from midgut + hindgut.

Question 27

Urorectal septum

Answer 27

tissue that divides urinary and digestive system. Grows and separates hind gut.