Ch 3: Conception and Prenatal Development Flashcards Preview

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Flashcards in Ch 3: Conception and Prenatal Development Deck (36)
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Includes the first 13 weeks of prenatal development

First trimester


Cognitive development of the brain structures (3)

Primitive hindbrain, midbrain, and forebrain develop leading to the development of fully-developed brain structures


pons function

controls relay signals for sleep, respiration, swallowing, bladder control, hearing, taste, eye movement, and posture


generally appears within the first 3 months after birth, but may take up to a year for symptoms to arise

Postpartum depression


During the third trimester (28+ week) the fetus

-Moves, kicks, stretches, but slows because of increase size -Gains most weight (1/2 pound/week) -Lanugo (fine hair) disappears -Bones harden, except the skull (soft for delivery)


fathers psychological concerns and issues through first trimester

-sense of disbelief, is this real? -will pregnancy be successful?


During the first trimester (first 13 weeks) the fetus

-Develops in a cephalocaudal (head to toe) direction, meaning structures near the head develop faster -All major organs and structures begin to form -Heart begins to beat after 8 weeks, blood begins to circulate -Hair starts to grow -Tooth buds form


During the second trimester (week 14-27) the fetus

-Organs develop further and begin to function -Fetus can swallow, hear, pee, suck -Genitals, eyebrows/lashes, fingernails form -Skin covers with vernix (a waxy coating) and lanugo (fine hair) -Moves, kicks, sleeps and wakes


Maternal nutriton

a well-balanced diet is critical for healthy fetal development


frontal lobe function

controls thought, voluntary behavior (walking, speech, problem solving), and some aspects of emotion


Mental health disorders during pregnancy

-depression & anxiety most common (10-15%) -increase chance of relapse -medication issues -postpartum depression


Domestic violence risks

risk of miscarriage, vaginal bleeding, low birth weight, fetal injury


mothers psychological concerns and issues through second trimester

-general sense of well-being is typical -feel increased dependence on partner -increased anxiety over body image


Social and emotional development

-connections between mother's emotions and baby -emotional expressions of the fetus start after 10 weeks -Around 6 months fetus can share mothers emotions -If mother experiences distress the fetus emotional development can be affected


Physically, a fetus undergoes the most dramatic changes within the ___ weeks of life.

first 8 weeks


Relationship concerns

-feelings about mothers changing body -emotional instability -shifting sexuality


5 Stages of grief

Denial: initial shock Anger: seeking someone to blame Bargaining: "if we had done this.." Depression: feelings of sadness and regret Acceptance


fathers psychological concerns and issues through second trimester

-as mother starts to show, start to think about responsibilities as a father


types of teratogens

-smoking -alcohol -drugs -diseases -violence


parietal lobe function

controls taste, touch, recognition of objects, and hand-eye coordination


teratogens effects depend on (4)

-when exposure occurred -how long the exposure lasted -how much of teratogen was present in body -genetic susceptibility of mother and fetus


Occipital lobe function

controls vision and visual recognition


spinal cord function

controls nerve tissue and supports cells while connecting the central nervous system; conducts motor information, sensory information and coronation reflexes


define malnutrition

one or more essential nutrients are missing or in the wrong proportions; can lead to behavioral issues, altered cognitive functioning and disturbance in learning/memory


mothers psychological concerns and issues through third trimester

-anticipation -concern over labor and delivery -body image concerns


what are teratogens

any disease, drug, or environmental agent that can harm a developing fetus


what is maternal stress include

-mother's stress hormones can cross placental barrier -can cause fetus to overreact to stimuli -can lead to spontaneous abortion, preeclampsia, preterm labor, reduced birthweight, reduced head circum.


temporal lobe function

controls hearing, some language, smell, portions of memory, emotions and fear


medulla function

controls autonomic nervous system functioning and connects the brain and spinal cord; contains reflexes, respiration, and cardiac functions


Includes weeks 28 and beyond

Third trimester