Haversian Canal

Figure 1-32

Compact Bone Center of "tree ring" structure, osteonic Haversian canal contains blood vessel. Osteocytes imprisoned in small, dark lacunae surrounding central osteonic canal receive nutrition and communicate via canaliculi, or little canals. Human. (X50)

Osteocytes Osteonic canal Lacunae Osteon

Figure 1-33

Detail of Compact Bone Osteon (Haversian system) evident. (X100)

Figure 1-32

Compact Bone Center of "tree ring" structure, osteonic Haversian canal contains blood vessel. Osteocytes imprisoned in small, dark lacunae surrounding central osteonic canal receive nutrition and communicate via canaliculi, or little canals. Human. (X50)

Osteocytes Osteonic canal Lacunae Osteon

Osteon System

Canaliculi Osteonic canal Osteocyte in lacuna Lamella Osteon

Figure 1-33

Detail of Compact Bone Osteon (Haversian system) evident. (X100)

Canaliculi Osteonic canal Osteocyte in lacuna Lamella Osteon

Osteoblast Osteon

Figure 1-34

Cancellous (Spongy) Bone Osteoblasts on spongy bone are engaged in secretion of new bony matrix. (X 100)

Osteocyte Resting osteoblast Spongy bone Osteoblast

Figure 1-34

Cancellous (Spongy) Bone Osteoblasts on spongy bone are engaged in secretion of new bony matrix. (X 100)

Osteocyte Resting osteoblast Spongy bone Osteoblast

Matrix Spongy Bone

Histology

Red Bone Marrow

Figure 1-35

Red Bone Marrow Medullary cavity in the head of long bones of the adult contains stem cells, precursors to red blood cells, and white blood cells and platelets. Human. (X250)

White blood cell precursors Eosinophilic myelocyte Myeloblast Basophilic myelocyte Neutrophilic stab cell Neutrophil

Erythroblasts

Proerythroblast Red blood cell precursors

Erythroblasts

Figure 1-35

Red Bone Marrow Medullary cavity in the head of long bones of the adult contains stem cells, precursors to red blood cells, and white blood cells and platelets. Human. (X250)

White blood cell precursors Eosinophilic myelocyte Myeloblast Basophilic myelocyte Neutrophilic stab cell Neutrophil

Erythroblasts

Proerythroblast Red blood cell precursors

Erythroblasts

Epiphyseal Plate Cells

Figure 1-36

Developing Bone at Epiphyseal Plate

Middle belt of cartilage undergoing primary calcification is replaced by new bone.

New spongy bone

Cartilage of epiphyseal plate

Figure 1-36

Developing Bone at Epiphyseal Plate

Middle belt of cartilage undergoing primary calcification is replaced by new bone.

New spongy bone

Cartilage of epiphyseal plate

Epiphyseal Plate

Figure 1-37

Detail of Epiphyseal Plate Epiphyseal plate cartilage at right transforms into zones of proliferating chondrocytes with primary ossification occurring on their calcified remnants. Newly formed bone appears at left. (X50)

Proliferating chondrocytes

Figure 1-37

Detail of Epiphyseal Plate Epiphyseal plate cartilage at right transforms into zones of proliferating chondrocytes with primary ossification occurring on their calcified remnants. Newly formed bone appears at left. (X50)

Proliferating chondrocytes

CHAPTER 1

Figure 1-38

Striated (Skeletal) Muscle (Cross Section)

Eccentrically located multiple nuclei accompany individual cells (fibers), each of which contains many myofibrils. Human tongue. (X250)

Muscle fibers Nucleus

Muscle fibers Nucleus

4

9

/

Li

Y

■ V- fr '- 1 '-'•■

li

^ J

m Jij

Striated (Skeletal) Muscle Fiber (Longitudinal Section) Banded appearance arises from regular arrangement of overlapping bundles of thick and thin filaments (myosin and actin, respectively). Eccentrically located nuclei are thin and elongated. (X250)

Striations

Nucleus

Figure 1-39

Striated (Skeletal) Muscle Fiber (Longitudinal Section) Banded appearance arises from regular arrangement of overlapping bundles of thick and thin filaments (myosin and actin, respectively). Eccentrically located nuclei are thin and elongated. (X250)

Striations

Nucleus

Skeletal Muscle Fiber Striations Nucleus
+1 0

Responses

  • Marigold
    Where are the lacunae with osteoblasts in an osteon?
    6 years ago
  • rita holmen
    Where are osteoblasts located in compact bone?
    6 years ago
  • Aden
    Where is the nucleus in a skeleton muscle?
    6 years ago
  • biniam afwerki
    Where is the muscle fiber located in the skeletal muscle?
    6 years ago
  • Jarno
    What is smaller a osteocyte or a osteon?
    6 years ago
  • eija
    What is the osteon on the bone?
    6 years ago
  • jennifer
    Where is the bony matrix in a osteocyte?
    5 years ago
  • Maire
    Where are the individual cells, striations, and the nuclei located in the skeletal muscle?
    5 years ago
  • Olavi Koivu
    What is osteonic canal?
    1 year ago

Post a comment