Ectoderm Study guides, Class notes & Summaries

BMP4 Ans signaling molecule that causes ectoderm to become mesoderm; in the absence of this molecule, the cells become neurons true Ans True or False: BMP4 is produced uniformly throughout the embryo BMP inhibitors Ans secreted by the organizer to pattern epidermal development lowest Ans concentration of BMP4 is ______ near the organizer ventral, epidermal Ans Strong BMP4 signaling specifies _____ fate in the mesoderm and endoderm; specifies _______ fates in the ectoderm. cortical ...

Embryological Germinal layers - Answer- Endoderm Mesoderm Ectoderm Endoderm derivatives - Answer- Organs, gut, respiratory tract "Tubular structures" Mesoderm subgroups - Answer- Paraxial Intermediate Head Lateral Plate Paraxial - Somatic derivatives - Answer- Musculoskeletal: muscles, ligaments, tendons Paraxial - Splanchnic derivatives - Answer- Smooth muscle of organs Intermediate mesoderm derivatives - Answer- Urogenital system Kidneys Head Mesoderm Derivatives - A...

Animals Ans: Multicellular eukaryotes Heterotrophs: Ingest their food Lack Cell Walls Body held together by structural proteins Collagen Ans: Make up connective tissues (fibers) Flexible and high tensile (stretching) Skin Ans: Dense irregular arrangement of collagen Ligament Ans: Collagen arranged in sheets (Connects Bones) Tendon Ans: Cable-like arrangement of collagen (Connects muscle to bone) Zygote Ans: Fertilized egg (Sperm+Egg=Zygote) Undergoes rapid cell division cal...

Chapter 54—Prenatal Care MULTIPLE CHOICE 1. Which of these statements regarding prenatal risk factors is TRUE? a. Fathers who smoke can contribute to decreased birth weight in their infants. b. Fetal alcohol syndrome is associated with excessive intake of alcohol during the second trimester of pregnancy. c. Illicit drug use is responsible for a majority of spontaneous abortions and stillbirths. d. Mothers who are not immune to rubella should be immunized during the first trimester o pr...

Bio 120 Exam QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED Synapomorphy A shared derived character or trait state that distinguishes a clade from the other organisms. Analagous Having characteristics that are similar because of convergent evolution, not homology. Homologous Similarity in characteristics resulting from a shared ancestry. Porifera Sponges No true tissues Mostly marine, aquatic Asymmetric 2 germ layers (endoderm and ectoderm) No coelom Sessile Sessile At...

IRENE GOLD BOARDS PART 1 SPINAL ANATOMY QUESTIONS AND ANSWERS 2024 These are derived from what: →Organs, →gut, →respiratory tract (tubular structures) - answerENDODERM These are derived from what: →muscles →tendons →ligaments - answerMESODERM Paraxial Somatic These are derived from what: splanchnic - smooth muscle of organs - answerMESODERM Paraxial Splanchnic These are derived from what: urogenital system and kidneys - answerMESODERM Intermediate These are derived ...

final exam all bio 4400, Cell Fate and Specification, Exam 2: Neurulation, Exam 2: Neurons, Exam 2 - Neural Crest cells, Exam 2: Sensory placodes and organs, Cell-cell interactions and signaling Ectoderm doesn't move through the __________ or __________ - CORRECT ANSWER 1) blastopore (frogs and fishes) or 2) primitive streak (birds and humans) Sensory organs all begin in the head as... - CORRECT ANSWER placode - thickenings of surface ectoderm what are 4 types of cell interact...

What are the 5 steps of neurological development in order? : Neurulation, cell proliferation, migration and aggregation, formation of axonal and dendritic processes, and synaptogenesis ______________ involves the formation of the neural crest and neural tube. : Neurulation Cell proliferation occurs within the ________ _______. : Neural tube During the migration and aggregation phase of embryological development the cells migrate/aggregate within _________ locations. : Definitive True...

Match the definition to its word parts. within endo- -hypo hemat/o cutane/o CORRECT ANSWER endo- What is the term that describes a bluish color of the skin and mucous membranes caused by an insufficient amount of oxygen in the blood? Cyanosis Hypoxia Hypoxemia Anoxemia CORRECT ANSWER cyanosis What are the three germ layers? Ectoderm, endoderm, mesoderm Amnion, chorion, embryo Central nervous system, brain, spinal cord Umbilical cord, amnion, chorion CORRECT ANSWER Ectoderm, end...

Irene Gold - General Anatomy Questions and Answers Latest Updated Graded A+. What embryo layer are the gut and respiratory tract derived from? - Correct Answer: Endoderm What are the four subgroups that arise from mesoderm? - Correct Answer: Paraxial Intermediate Head Lateral plate What embryo layer do somites arise from? - Correct Answer: Mesoderm - paraxial What embryo layer are the urogenital system and kidneys derived from? - Correct Answer: Mesoderm - intermediate What embryo layer...