Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

10 Questions

1 Views

Permission for Using Lecture Materials

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the origin of the vascular system (heart and blood vessels)?

Exodermal

Mesodermal (correct)

Ectodermal

Endodermal

What do the angioblasts (vascular mesodermal cells) form during development?

Endodermal cells

Blood islands (correct)

Extracellular matrix

Ectodermal cells

Where do the blood islands form in the embryonic disc?

In the ectodermal regions

In the exodermal areas

In the endodermal regions

In the cardiogenic area (correct)

What do the blood islands in the rest of the embryonic regions form?

Primitive blood vessels Signup and view all the answers

What do the clusters of cells called blood islands form in the cardiogenic area of the embryonic disc?

Endocardial heart tubes Signup and view all the answers

What results from the unequal growth of the heart tube?

Formation of 4 dilated sacs separated by narrow constrictions Signup and view all the answers

What is the arrangement of the dilated sacs resulting from the differentiation of the heart tube?

Bulbus cordis, primitive ventricle, primitive atrium, sinus venosus Signup and view all the answers

What derivatives does the sinus venosus give rise to?

Smooth posterior part of coronary sinus, lower part of the superior oblique vein, degenerated umbilical vein Signup and view all the answers

What results from the rapid growth of the heart tube compared to the cranial pericardium?

Formation of an S-shaped loop due to dorsal folding of the heart tube Signup and view all the answers

What is the result of the development of interatrial septum?

Division of the common atrium into right and left atria Signup and view all the answers