Class Notes (807,350)
Canada (492,715)
Psychology (2,016)
PSYC 208 (100)

Chapter 3 Independent Questions.doc

6 Pages
Unlock Document

University of British Columbia
PSYC 208
Maria Weatherby

Chapter 3 – Independent Questions I. Conception A. The Process of Conception (Optional reading: Not on the exams) II. Pregnancy and Prenatal Development A. The Mother’s Experience 1. The mother’s experience of pregnancy is divided into 3 equal parts or trimesters: (i) first trimester 0-12 weeks, (ii) second trimester 13-24 weeks, (iii) third trimester 25-38 weeks. (a) You need to know the information summarized under the headings “Trimester”, “Events” and “Serious Problems” (not “Prenatal Care”) in Table 3.1 (p. 62). (b) You also need to know the italicized words/terms only on pp. 61-63 under the subheadings “First Trimester”, “Second Trimester”, and “Third Trimester”. Trimester – three periods of 3 months each First Trimester Womb – lining of a woman’s uterus Cervix – narrow, lower portion of uterus, extends into the vagina NVP (nausea and vomiting in pregnancy) – morning sickness Ectopic Pregnancy – a zygote implants in one of the fallopian tubes instead of in the uterus Spontaneous Abortion – miscarriage Second Trimester Gestational Diabetes – kind of diabetes that happens only during pregnancy Third Trimester Colostrum – substance secreted by a woman’s breast Toxemia of Pregnancy – life-threatening condition; signaled by a sudden increase in blood pressure and can cause a pregnant woman to have a stroke B. Prenatal Development 2. There are 2 patterns of physical growth in the developing fetus: cephalocaudal (TOP DOWN) and proximodistal (INSIDE-OUTSIDE) patterns. Define each of these patterns of physical development. - Cephalocaudal – top to down (from the head downward) - Proximodistal – medial lateral (centre of body to outward extremities) (Ex. rib cage before fingers and toes) 3. There are 3 stages of prenatal development, which are defined by specific developmental milestones. Unlike the mother’s experience, the three stages of prenatal development are not equal in length. The first 2 weeks are referred to as the germinal stage; weeks 3 to 8 are referred to as the embryonic stage; weeks 9 to 38 are referred to as the fetal stage. (a) You need to know all of the information in Table 3.2. (Except the first sentence about the weight and length gains in the fetal stage) (b)You also need to know the italicized and bold words ONLY on pp. 63-66 under the subheadings “The Germinal Stage”, “The Embryonic Stage”, and “The Fetal Stage”. Germinal Stage (from conceptions to implantation constitute the germinal stage) - 1 ststage of prenatal development, beginning at conception and ending at implantation (approximately 2 weeks) - Blastocyst – fluid-filled ball - Implantation – attachment of the blastocyst to the uterine wall - Placenta – specialized organ that allows substances to be transferred from mother to embryo and from embryo to mother without their blood mixing - Umbilical cord – organ that connects the embryo to the placenta - Amnion – fluid-filled sac in which the fetus floats until just before it is born Embryonic Stage (begins at implantation, approximately 2 weeks after conceptions, continues until the end of week 8) - Neurons – specialized cells of the nervous system - Neural tube – structure from which the brain and spinal cord develop - Gonads – sex glands (ovaries in females, testes in males) - Testosterone – male hormone - Organogenesis – process of organ growth The Fetal Stage (final phase, beginning at the end of week 8 and continuing until birth) - Viability – ability of fetus to survive outside of womb - Cell bodies – part of a neuron that contains the cell body and is the site of vital cell functions 4. Read the text under the subheading “The Fetal Brain”. (a) What is neuronal proliferation? - When the pace of neural formation picks up dramatically between the 10 and th 18 week (b) Neurons consist of cell bodies, axons and dendrites. Describe each of these three terms. - Cell bodies – part of a neuron that contains the cell body and is the site of vital cell functions - Axons – tail-like extensions that range in length from 1 to 200 millimeters within the brain; can grow to be more than a meter - Dendrites – tentacle-like branches that extend out from the cell body (c)What are synapses? Make sure you understand how axons and dendrites are essential to the process of synapse formation. Synapse
More Less

Related notes for PSYC 208

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.