Lab Exam 1. Flashcards
What is squalous’ Skeleton primarily composed of?
Hyaline Cartilage, but their jaws are composed of calcified cartilage.
What two Groups of Vertebrates have a totally cartilagenous skeleton?
Super Class Agnatha.
Gnathostomata Phylum Chondrichthyes- Except their Teeth.
What are the four types of cartilage?
- Hyaline Cartilage.
- Fibrocartilage.
- Elastic Cartilage.
- Calcified Cartilage.
What Membrane Surrounds the cartilage organs such as the skeleton of chondrichthyes?
Perichondrium.
Neopterygians Vs Teleost Skeleton?
Neopterygian skeleton has a large cartilage component while its descendant teleosts have a much more ossified skeleton.
Compact Bone AKA:
Cortical Bone.
Spongy Bone AKA:
Medullary Bone.
What are the 4 Shapes/ Classes of Bones?
- Short Bones.
- Long Bones.
- Flat Bones.
- Irregular Bones.
Subclass of bones which do not attach directly to the skeleton and are enveloped by tendons and liganments that indirectly attach it to the skeleton.
Sesmoid Bones; Subclass of irregular shaped bones.
EX: Patella. “Sesame” Shaped.
Where is Red Marrow Found?
Within the epiphyses medullary of long bones. Specifically within the intertrabecular spaces.
What is the densely pack adipose tissue found in the medullary intertrabecular spaces of diaphyses of long bones?
Yellow Marrow.
What is the epiphyseal plate?
AKA Growth Plate. A Plate of Hyaline cartilage between the diaphysis and epiphysis of long bones. This is where the long bone lengthens when growing. Once an animal matures, the plate will ossify and becomes known as the epiphyseal line.
What is growth plate called once it ossifies in mature animal?
Epiphyseal Line.
Identify This Structure.
4m Kitten.
Proximal Femoral Epiphyseal Growth Plate.
What covers each Bony organ?
Periosteum.
Bone tissue which layers the inner bone medullary spaces?
Endosteum.
