Lab 1 - Histology Flashcards
1
Q
- Name the main tissue type
- Name the tissue sub-type(s)
- Identify the structure(s) in the slide
- Name function of this tissue and its structures.
A
- Connective tissue
- Supportive connective tissue > Cartilage > Hyaline cartilage
- Chondrocytes in lacunae
- matrix
- Hyaline cartilage:
- Found in the rib cage, nose, and joint coverings.
- Forms template of the embryonic skeleton before bone formations
- Epiphyseal growth plate of bones is made of hyaline cartilage; allows for continued bone growth into adulthood.
Chondrocytes: cartilage cells; form cartilage (specifically, produce collagen, which forms the extracellular matrix)
2
Q
- Name the main tissue type
- Name the tissue sub-type(s)
- Identify the structure(s) in the slide
- Name function of this tissue and its structures.
A
- Connective Tissue
- Supportive connective tissue > Cartilage > Fibrocartilage
- Chondrocytes in lacunae
- collagen fiber (located in the matrix)
- Fibrocartilage:
- tough due to thick bundles of collagen fibres dispersed throughout the matrix
- E.g’s menisci in the knee joint, intervertebral discs
Chondrocytes:
- form cartilage
3
Q
- Name the main tissue type
- Name the tissue sub-type(s)
- Identify the structure(s) in the slide
A
- Connective tissue
- supportive connective tissue > bone > compact (ground) bone
- Haversian System (osteon), Haversian canal, lamellae, lacunae, canaliculi
- Compact bone: forms the hard external layer of all bones and surrounds the bone marrow. - FUNCTION: provides strength & protection to bones
4
Q
What structures are found in Haversian canals?
A
blood vessels
5
Q
- Name the main tissue type
- Name the tissue sub-type(s)
- Identify the structure(s) in the slide
- Name the location and function of this tissue
A
- Connective tissue
- supportive connective tissue > bone > Cancellous (spongy) bone
- osteocyte (within lacunae)
4.
- Location: internal to compact bone (e.g. compact bone is the hard casing, and spongy bone is the soft filling)
- Function of spongy bone: reduces density and weight of bone
6
Q
- Name the main tissue type
- Name the tissue sub-type(s)
- Identify the structure(s) in the slide
- Name the location and function of this tissue
A
- Connective tissue
- connective tissue proper > dense connective tissue > dense regular connective tissue > tendon
- Fibroblast, fibroblast nuclei, collagen fibers
- Location of tendons: where muscle and bone connect
Function:
- Fibroblast: produces collagen fibers
7
Q
- Name the main tissue type
- Name the tissue sub-type(s)
- Identify the structure(s) in the slide
- Name the location and function of this tissue
A
- muscle
- skeletal muscle
- myofibril, sarcomere, nuclei
- function - movement of the body
8
Q
- Name the main tissue type
- Name the tissue sub-type(s)
- Identify the structure(s) in the slide
- Name the location and function of this tissue
A
- muscle
- smooth muscle
- nuclei DOES NOT HAVE STRIATIONS
- function - varies - e.g. sealing of orifices, contracts to change size of blood vessels (vasodilation and contraction)
9
Q
- Name the main tissue type
- Name the tissue sub-type(s)
- Identify the structure(s) in the slide
- Name the location and function of this tissue
A
- muscle
- cardiac muscle
- myofibril, sarcomere, nuclei
- location: myocardium (middle layer) of the heart - function - causes contractions of ventricles (heart to pump)
10
Q
What is the importance of spongy bone?
A
Makes bones lighter (less dense) so they are easier for skeletal muscles to move
11
Q
Fiber type of hyaline cartilage
A
Collagen fiber
12
Q
Fiber type of fibrocartilage
A
Type I collagen fibers
13
Q
Fiber type of elastic cartilage
A
Elastin
14
Q
Besides tendons and ligaments, where else in the body is dense regular fibrous connective tissue located
A
aponeuroses (sheet of pearly white fibrous tissue that takes the place of a tendon in flat muscles having a wide area of attachment)
15
Q
What are the structural classification of joints?
A
- fibrous (little to no mobility)
- Cartilaginous (partial moveable)
- Synovial (freely moveable)
