Week1 Flashcards
Embryology
The study of early development through birth
Prenatal
Before birth
Perinatal
Third trimester through the first month of life
Postnatal
After birth
Trimester
A period of three months of development
Gestation
Divide into first, second, and third trimester
A normal pregnancy last
38 weeks after fertilization
Fertilization and implementation
0-2 weeks in utero
Embryonic period
3-8 weeks in utero
Fetal period
9-38 weeks in utero
Infancy
Birth to 1 year
Childhood
1 year to puberty (10-13)
Adolescent
Puberty to adulthood
Adulthood
Between 18 and 21 years
During the first month what is any infant called
Neonate
Natology
Pediatric specialty involving disorders of neonates
Teratology
Study of abnormal development
Teratogen
A drug agent which can cause abnormal development
Ex. Retinoids including accutang
Period of greatest sensitivity to teratogenesis
Embryonic period
Accutang causes
Facial CNS and cardiovascular malfunctions
Metformin
Diabetes drug
Median midsagittal plane
Vertical plane passes through midline of the body, dividing it into symmetrical right and left halves
Sagittal plane
Any vertical plane which passes through the body, either within or parallel to the median plane.
Parasagittal plane
Any vertical plane which passes through the body parallel to but not within the median plane
Coronal plane
Any vertical plane which passes through the body at right angles to the median plane, dividing the body into anterior and posterior parts.
Transverse plane
Any plane which passes through the body at right angles to both the median and coronal planes, diving the body into upper and lower parts.
Superior
Towards the head
Inferior(caudal)
Towards the tail
Proximal
Nearer the trunk
Distal
Further from the trunk
Anterior (ventral)
Nearer to the front of the body
Posterior (dorsal)
Nearer to the back of the body
Medial
Towards the median plane
Lateral
Away from the median plane
Superficial
Near the surface
Deep
Nearer to the interior of the body
Parietal
Relating to the lining of a cavity
Visceral
Relating to the covering of an organ
Directional terms for embryo
Cranial (rostral), caudal, ventral, dorsal
Gametes unite to form a
Zygote …yoked together (paired)
Gametogenesis
The prices the results in production of mature sperm and oocytes (gametes)
Gametogensis happens through
Meiosis
Somatic cell division or Mitosis
Single called division, full complement of chromosomes (46) diploid
Germ cell division or meiosis
Two cells division, half the typical complement of chromosomes (23), haploid