ACBS 400A assignments, quizzes, tophat for exam 1 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Which of these types of bone is the location where you Long bones
can find yellow marrow?
There are 4 zones of bone during lengthening of growing Zone of proliferation: Formed by chondrocytes that are further from diaphysis
bones. What are they formed by?
Zone of maturation: Formed by chondrocytes that have stopped dividing and
have become enlarged
Zone of hypertrophy: Formed by enlargement and vacuolation of chondrocytes
Zone of provisional calcification: Formed by cartilaginous matrix surrounding
cells beginning to calcify
T/F The primary location of endochondral ossification is false (the question is flipped so...)
in the epiphysis of long bones. The secondary location
later in the process is the diaphysis of the long bones. Primary ossification center → forms in the diaphysis (shaft) of long bones during
prenatal/fetal development.
Secondary ossification centers → form later in the epiphyses (ends of bones),
usually around or after birth.
,Label this diagram: 7__Concentric lamellae
1. A __4__Volkmann canal
2. B
3. C __3__Interstitial lamellae
4. D
5. E __6__Osteon
6. F
7. G __5__Haversian canal
__1__Circumferential lamellae
__2__Periosteum
Mesenchymal cells differentiate into different cells
depending on the method of ossification. In
intramembranous ossification, they mostly become
___osteoblasts___ while in endochondral ossification, it
most commonly turns into ___chondrocy tes___
The (2 words)___hyaline cartilage___ is the model for bone
formation during endochondral ossification.
Label this diagram: __1__Lacuna
__2__Canaliculi
1.A (space) __3__Lamellae
2.B __4__Osteocyte
3.C __5__Haversian canal
4.D __6__Osteoclast
5.E __7__Osteoblast
6.F
7.G
Which of these are amino acids found in the body that are - Hydroxyproline: a neutral heterocyclic protein amino acid that's commonly
only in bone? found in bone and gelatin
- Hydroxylysine: amino acid unique to collagen-like peptides
, Which of these is a hormone NOT directly related to Osteocalcin
osteocytic osteolysis?
Calcitonin
Osteocalcin
Parathyroid hormone
1,25-dihydroxyvitamin D
What is the role of parathyroid hormone (PTH) in Ca2+ Prevents osteoclasts from entering reversal phase and osteoblasts from laying
homeostasis? new matrix depending on if there is a Ca2+ deficit in the ECF
Label this diagram: __10__Epiphyseal plate
1.A __3__Diaphysis
2.B
3.C __6__Medullary cavity/space
4.D
5.E __2__Metaphysis
6.F
7.G __8__Endosteum
8.H (lining of this area)
9.I (material within space) __9__Red bone marrow
10.J
11.K __4__Periosteum
__5__Yellow marrow
__11__Spongy/Trabecular/Cancellous bone
__7__Compact/Cortical bone
__1__Epiphysis
There are 2 connective tissue layers of bone. There is the
___periosteum___ that is on the external aspect of the
compact bone, and it nourishes it. Then there is the
___endosteum___ that is on the internal aspect of compact
bone where the medullary cavity is found.
When bone is increasing in diameter, outside bone is true
created while inside bone is resorbed. This keeps the rate
constant and allows room for bone marrow.
True
False
QUESTIONS AND CORRECT ANSWERS
Which of these types of bone is the location where you Long bones
can find yellow marrow?
There are 4 zones of bone during lengthening of growing Zone of proliferation: Formed by chondrocytes that are further from diaphysis
bones. What are they formed by?
Zone of maturation: Formed by chondrocytes that have stopped dividing and
have become enlarged
Zone of hypertrophy: Formed by enlargement and vacuolation of chondrocytes
Zone of provisional calcification: Formed by cartilaginous matrix surrounding
cells beginning to calcify
T/F The primary location of endochondral ossification is false (the question is flipped so...)
in the epiphysis of long bones. The secondary location
later in the process is the diaphysis of the long bones. Primary ossification center → forms in the diaphysis (shaft) of long bones during
prenatal/fetal development.
Secondary ossification centers → form later in the epiphyses (ends of bones),
usually around or after birth.
,Label this diagram: 7__Concentric lamellae
1. A __4__Volkmann canal
2. B
3. C __3__Interstitial lamellae
4. D
5. E __6__Osteon
6. F
7. G __5__Haversian canal
__1__Circumferential lamellae
__2__Periosteum
Mesenchymal cells differentiate into different cells
depending on the method of ossification. In
intramembranous ossification, they mostly become
___osteoblasts___ while in endochondral ossification, it
most commonly turns into ___chondrocy tes___
The (2 words)___hyaline cartilage___ is the model for bone
formation during endochondral ossification.
Label this diagram: __1__Lacuna
__2__Canaliculi
1.A (space) __3__Lamellae
2.B __4__Osteocyte
3.C __5__Haversian canal
4.D __6__Osteoclast
5.E __7__Osteoblast
6.F
7.G
Which of these are amino acids found in the body that are - Hydroxyproline: a neutral heterocyclic protein amino acid that's commonly
only in bone? found in bone and gelatin
- Hydroxylysine: amino acid unique to collagen-like peptides
, Which of these is a hormone NOT directly related to Osteocalcin
osteocytic osteolysis?
Calcitonin
Osteocalcin
Parathyroid hormone
1,25-dihydroxyvitamin D
What is the role of parathyroid hormone (PTH) in Ca2+ Prevents osteoclasts from entering reversal phase and osteoblasts from laying
homeostasis? new matrix depending on if there is a Ca2+ deficit in the ECF
Label this diagram: __10__Epiphyseal plate
1.A __3__Diaphysis
2.B
3.C __6__Medullary cavity/space
4.D
5.E __2__Metaphysis
6.F
7.G __8__Endosteum
8.H (lining of this area)
9.I (material within space) __9__Red bone marrow
10.J
11.K __4__Periosteum
__5__Yellow marrow
__11__Spongy/Trabecular/Cancellous bone
__7__Compact/Cortical bone
__1__Epiphysis
There are 2 connective tissue layers of bone. There is the
___periosteum___ that is on the external aspect of the
compact bone, and it nourishes it. Then there is the
___endosteum___ that is on the internal aspect of compact
bone where the medullary cavity is found.
When bone is increasing in diameter, outside bone is true
created while inside bone is resorbed. This keeps the rate
constant and allows room for bone marrow.
True
False
