Septum transversum - Study guides, Class notes & Summaries

Embryonic folding By the end of the fourth week of development, the embryo has already begun to take human form. It is nearly completely lined on the outside with ectoderm. Inside, the neural tube is continuing to develop within the dorsal mesenchyme. Adjacent to the neural tube, somites are forming in a segmental fashion. Lateral to this, intermediate mesoderm is beginning to form structures of the urogenital system and gonads. The lateral plate mesoderm had split into splanchnopleuric and s...

How is the primitive gut tube formed? -through craniocaudal and lateral folding of the embryo via the incorporation of the dorsal part of the yolk sac into the embryo The primitive gut tube extends from the oropharyngeal membrane to the cloacal membrane and is divided into... -the foregut, midgut, and hindgut Compare the adult vs. embryonic histology of the GI tract. -adult: mucosa (epithelial lining and glands, lamina propria, and muscularis mucosae), submucosa, muscularis externa,...

1. The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the: A. capacitor B. head C. corona D. acrosome E. cumulus D. is correct. The acrosome is the part of the sperm containing proteolytic enzymes to digest the zona pellucida. It is exposed by the process of capacitation. Then, under the influence of substances released by corona radiata cells, it releases its proteolytic enzymes and penetrates the oocyte. 2. The ovulated mammalian oocyte is arre...

Embryology Exam | Actual Questions with Answers| updated 2023/24 1. The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the: A. capacitor B. head C. corona D. acrosome E. cumulus - D. is correct. The acrosome is the part of the sperm containing proteolytic enzymes to digest the zona pellucida. It is exposed by the process of capacitation. Then, under the influence of substances released by corona radiata cells, it releases its proteolytic enzymes a...

MCQ Basic Science 1 Exam Questions And Answers "A 23-year-old woman with a natural menstrual cycle is nearing ovulation. The oocyte of a mature follicle will be induced to undergo the first meiotic division as a result of which of the following hormonal stimuli? A. The cessation of progesterone secretion B. The gradual elevation of follicle-stimulating hormone (FSH) titers C. The low estrogen titers associated with the maturing follicle D. The slow elevation of progesterone produced by l...

The document describes the Aorta, its branches, and the clinical correlations associated with it. It however summarizes notes on the Diaphragm and inferior cava effectively.