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What characterizes the firs trimester?
Development of body structures
what characterizes the 2nd trimester?
Rapid growth in legnth
what characterizes the third trimester
- - body system maturation
- - rapid growth in weight and brain size
Name the three stages of prenatal growth
- 1. the fertilized ovum
- 2. the embryo
- 3. the fetus
Oocyte contact by sperm = ______ ______
What process results in 4 daughter cells that are not identical
What is a blastomere?
What is clevage?
Increase in cell number
______ occurs during the second to third week of development after implantation.
What is "one of the most critical periods in the development of the embryo."
Increase in size
Growth is correlated positively with ____
Name 3 causes for variation in growth
- 1. sex differences
- 2. population differences
- 3. environmental differences
How do you determine skeletal age? (3)
- Appearance of ossification centers
- •Morphology and size of ossification centers
- •Fusion of ossification centers
name the order of the bones in the ephiphyseal- diaphyseal pattern
Elbow → Hip → Ankle → Knee → Wrist → Shoulder
Pubic symphyseal morphology\
•Sacro-iliac articulation morphology
•Sternal rib end morphology
•Cranial suture closure
all help to determine what
age estimation in adults
What is stature?
long bone legnth
What begins with gut tube formation via folding in Week 4?
Foregut begins to differentiate into the esophagus, stomach, liver, gallbladder, pancreas and spleen by week ____
What weeks are the large and small intestines produced?
define membrane (dermal) bones
Cranial vault, part of face
supports the pharyngeal arches and jaws (upper and lower)
Name the 5 stages of postnatal development
- Juvenile (late childhood)
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