Week 6 Embryonic Development

<p>It creates two distinct ventricles for blood pumping. (A)</p> Signup and view all the answers

<p>Syndactyly. (A)</p> Signup and view all the answers

<p>Development of foot plates. (B)</p> Signup and view all the answers

<p>From a septal fold that grows and fuses. (D)</p> Signup and view all the answers

<p>It is critical for limb function and mobility. (D)</p> Signup and view all the answers

<p>Formation of the foramen ovale (D)</p> Signup and view all the answers

<p>They start as paddle-like structures with digital rays appearing. (C)</p> Signup and view all the answers

<p>It elongates and forms a loop that herniates into the umbilical cord. (C)</p> Signup and view all the answers

<p>Formation of the complete skeletal structure of the limbs (A)</p> Signup and view all the answers

<p>It sculpts and separates the webbed fingers into individual digits. (D)</p> Signup and view all the answers

<p>Week 6 (C)</p> Signup and view all the answers

<p>Lower limb development is slightly behind that of upper limbs. (D)</p> Signup and view all the answers

<p>They begin to septate into right and left ventricles. (A)</p> Signup and view all the answers

<p>To allow blood to bypass the non-functional lungs (B)</p> Signup and view all the answers

<p>It typically closes soon after birth (A)</p> Signup and view all the answers

<p>It establishes a four-chambered heart for effective circulation (D)</p> Signup and view all the answers

<p>It marks the early development of the gastrointestinal tract (C)</p> Signup and view all the answers

<p>Rapid growth of the midgut compared to the abdominal cavity (A)</p> Signup and view all the answers

<p>It retracts into the abdominal cavity and takes a permanent position (B)</p> Signup and view all the answers

<p>It facilitates direct blood flow to systemic circulation (D)</p> Signup and view all the answers

<p>The lungs do not participate in gas exchange during fetal life (A)</p> Signup and view all the answers

<p>Intestinal malrotation (A)</p> Signup and view all the answers

<p>Starts producing red blood cells (C)</p> Signup and view all the answers

<p>Septation of atria and ventricles (A)</p> Signup and view all the answers

<p>Lungs are developing but non-functional (C)</p> Signup and view all the answers

<p>Future formation of fingers and toes (C)</p> Signup and view all the answers

<p>It herniates into the umbilical cord (A)</p> Signup and view all the answers

<p>Congenital limb malformations (D)</p> Signup and view all the answers

<p>Enables blood to bypass the non-functional lungs (D)</p> Signup and view all the answers

The initial paddle-like structures at the end of upper limb buds that develop into fingers.

The precursors to fingers that appear as mesodermal condensations along the sides of the hand plates.

The process of separating and shaping the individual digits (fingers) from the webbed hand plates.

The elongation of the midgut, creating a loop that protrudes into the umbilical cord during week 6.

The process by which the midgut loop returns to the abdomen, rotates, and differentiates into different parts of the digestive system.

The division of the heart's atria and ventricles into separate chambers during Week 6.

An opening between the right and left atria of the fetal heart, allowing blood to bypass the lungs.

Programmed cell death that plays a role in shaping and separating fingers during digit formation.

The process of developing distinct fingers and toes, starting with digital rays that eventually separate and develop into individual digits.

The process of separating the heart's chambers into distinct right and left atria and ventricles.

The partition forming between the right and left atria, preventing the mixing of oxygenated and deoxygenated blood. It starts as a fold that grows and fuses.

The partition forming between the right and left ventricles, leading to two separate chambers for pumping blood. Starts as a simple partition becoming more prominent.

A condition where fingers or toes are fused together, resulting from disruptions in digital ray differentiation during development.

A condition where extra fingers or toes develop, resulting from disruptions in digital ray differentiation during development.

The development of structures along the length of a limb, progressing from proximal (closer to the body) to distal (further from the body) parts.

The process of programmed cell death that removes webbing between the toes during embryonic development, leading to distinct toes.

A small opening in the wall between the right and left atria of the fetal heart.

The foramen ovale allows blood to bypass the lungs in the fetus because they are not functional for oxygen exchange.

In fetal circulation, the foramen ovale allows oxygenated blood to bypass the lungs and flow directly into the left atrium, where it's then pumped to the body.

The septum between the atria and ventricles of the heart developing into separate chambers.

The foramen ovale usually closes soon after birth when the baby starts breathing air and the lungs become functional for gas exchange.

The intestines grow faster than the abdominal cavity can accommodate early in development, so they temporarily protrude into the umbilical cord.

The herniated intestinal loop rotates and returns to the abdominal cavity, taking its permanent position during development.

The early stages of gastrointestinal tract development.

A condition that occurs when the midgut doesn't return and rotate properly, potentially leading to intestinal blockage or lack of blood supply.

The process of limb buds elongating and developing into hands and feet, with fingers and toes starting to form.

The process of the liver beginning to produce red blood cells, a crucial function.

The initiation of the kidneys' function to filter waste and produce urine, although they will become fully functional later.