Early Embryology Stages and Yolk Types

<p>To remove existing bone. (D)</p> Signup and view all the answers

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

<p>Formation of bony trabeculae and red marrow. (B)</p> Signup and view all the answers

<p>They ossify completely after sexual maturity. (B)</p> Signup and view all the answers

<p>It provides rigid support along with some elasticity. (D)</p> Signup and view all the answers

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

<p>Zygote, Morula, Blastula, Gastrula, Neurula (A)</p> Signup and view all the answers

<p>Yolk delivery varies in quantity and distribution among species. (B)</p> Signup and view all the answers

<p>Connective tissue (B)</p> Signup and view all the answers

<p>To migrate and differentiate into various tissue types (B)</p> Signup and view all the answers

<p>Yolk is concentrated at one pole of the egg. (B)</p> Signup and view all the answers

<p>Oviparity involves laying eggs, while viviparity involves giving birth to live young. (A)</p> Signup and view all the answers

<p>Gastrula (D)</p> Signup and view all the answers

<p>Mesoderm (B)</p> Signup and view all the answers

<p>Chondroitin sulphates and collagenous protein fibers (B)</p> Signup and view all the answers

<p>Covering membranes and glands (C)</p> Signup and view all the answers

<p>Transformation of a zygote into a multicellular, hollow blastula (A)</p> Signup and view all the answers

<p>They possess a slight amount of yolk. (A)</p> Signup and view all the answers

<p>It establishes the basis for the nervous system. (B)</p> Signup and view all the answers

<p>Hyaline cartilage (C)</p> Signup and view all the answers

<p>Elastic cartilage (D)</p> Signup and view all the answers

<p>It develops from the mesoderm and supports organ systems. (B)</p> Signup and view all the answers

<p>Intramembranous ossification (B)</p> Signup and view all the answers

<p>Eggs are encapsulated in shells or protective layers. (B)</p> Signup and view all the answers

<p>They differentiate into a variety of cell types. (A)</p> Signup and view all the answers

<p>At the metaphysis (C)</p> Signup and view all the answers

<p>Protein collagen and calcium phosphate (D)</p> Signup and view all the answers

<p>Establishment of the three germ layers. (B)</p> Signup and view all the answers

<p>It provides nutrients essential for embryonic growth. (B)</p> Signup and view all the answers

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

<p>Fibrocartilage (D)</p> Signup and view all the answers

<p>Haversian canal (B)</p> Signup and view all the answers

<p>Complete ossification at sexual maturity (A)</p> Signup and view all the answers

<p>Yellow marrow (C)</p> Signup and view all the answers

<p>Endochondral ossification (B)</p> Signup and view all the answers

Fertilized egg; earliest developmental stage of an organism.

Process dividing a single-celled zygote into a multicellular, hollow blastula.

Multicellular, hollow structure formed during early embryonic development.

Formation of the endodermal tube; gut formation in early development.

Formation of the ectodermal tube, specifically the neural tube, in early development.

Ectoderm, endoderm, and mesoderm; these develop into tissues and body regions.

Egg with a small amount of yolk.

Egg with yolk concentrated at one end (vegetal pole).

Tissue that lines or covers body cavities or forms glands.

Tissue that supports and connects other tissues, including cartilage, bone, and blood.

A type of cartilage found at the ends of bones, allowing growth until adulthood. It consists of dispersed collagen fibers and proteoglycans, appearing as a smooth plate under a microscope.

Cartilage with a lot of collagen fibers. It resists stretching and warping forces.

Cartilage with abundant elastin fibers, making it springy and flexible. It supports and provides elasticity.

Bone is made of collagen protein and calcium phosphate. This combination makes it strong and flexible, withstanding stress.

A structural unit of compact bone, consisting of concentric rings of bone cells and matrix around a central canal housing blood vessels.

Bone that develops from cartilage.

Bone that develops directly from mesenchyme tissue without cartilage.

The tubular shaft of a long bone.

The wider section at each end of a long bone, filled with spongy bone.

A layer of hyaline cartilage in a growing bone, which allows growth to occur.

The stages of early embryology are zygote, morula, blastula, gastrula, and neurula.

Oviparity is the laying of eggs that are encapsulated in shells or other tertiary egg envelopes. Viviparity is the giving birth to embryos without shells or other tertiary egg envelopes.

The yolk is a nutrient-rich source that supports the developing embryo.

The three embryonic germ layers are ectoderm, endoderm, and mesoderm.

Neural crest cells are able to migrate to different parts of the body and differentiate into many cell types.

The four main tissue categories are epithelial, connective, muscle, and nervous tissue.

Epithelial tissues fall into one of two groups: membranes that line or cover cavities, glands that secrete products that act elsewhere in the body.

Connective tissues include cartilage, bone, fibrous connective tissue, adipose tissue, and blood.

Cartilage is made of a polysaccharide called chondroitin sulphates, which bind with ground substance proteins to form proteoglycans.

Hyaline cartilage is the most common type of cartilage in the body.