Question

lesson 1 prenatal development and care it all happens before birth directions: read the following list of events in the stages of embryonic and fetal development. then fill in the chart by placing each event in the trimester during which it usually occurs. 1. fetus may dream 2. heart begins beating 3. fingers and toes form 4. weight increases rapidly 5. spinal cord grows faster than rest of body 6. fetus can hear conversations 7. fetus passes water from the bladder 8. baby is ready to be born 9. nervous system responds to stimuli 10. fetus weighs six to nine pounds 11. fetus has regular sleep/wake cycle 12. fetus uses all five senses 13. fetus develops human profile 14. limbs reach full proportion 15. fetus can kick first trimester 1. 2. 3. 4. 5. second trimester 1. 2. 3. 4. 5. third trimester 1. 2. 3. 4. 5.

Explanation:

Step1: Identify first - trimester events

In the first trimester, major organ systems start to form. The heart begins beating, fingers and toes form, and the spinal cord grows faster than the rest of the body.

1. Heart begins beating; 3. Fingers and toes form; 5. Spinal cord grows faster than rest of body

Step2: Identify second - trimester events

During the second trimester, the fetus becomes more active and develops more senses. The fetus can hear conversations, has a regular sleep/wake cycle, and can kick.

1. Fetus can hear conversations; 11. Fetus has regular sleep/wake cycle; 15. Fetus can kick; 9. Nervous system responds to stimuli; 13. Fetus develops human profile

Step3: Identify third - trimester events

In the third trimester, the fetus gains weight and prepares for birth. The fetus may dream, passes water from the bladder, is ready to be born, weighs six to nine pounds, and uses all five senses.

1. Fetus may dream; 7. Fetus passes water from the bladder; 8. Baby is ready to be born; 10. Fetus weighs six to nine pounds; 12. Fetus uses all five senses; 4. Weight increases rapidly; 14. Limbs reach full proportion

Answer:

First Trimester:
1.

1. Heart begins beating
2. Fingers and toes form

4.

1. Spinal cord grows faster than rest of body

Second Trimester:

1. Fetus can hear conversations
2. Fetus has regular sleep/wake cycle
3. Fetus can kick
4. Nervous system responds to stimuli
5. Fetus develops human profile

Third Trimester:

1. Fetus may dream
2. Fetus passes water from the bladder
3. Baby is ready to be born
4. Fetus weighs six to nine pounds
5. Fetus uses all five senses; Weight increases rapidly; Limbs reach full proportion