The skeletal System
Order by
26 terms
Terms | Definitions |
|---|---|
 1/3 | The matrix is __ organic. |
| organic | consists of protein and collagen fibers. |
| 2/3 | The matrix is __ inorganic |
| Parathyroid gland | releases parathyroid hormone (PTH) to stimulate osteoclasts. |
| thyroid | releases calcitonin to stimulate osteoblasts. |
| red marrow | hematopoietic cells = leukocytes, erythocytes, thrombocytes |
| red marrow | other stem cells for osteocytes, chondrocytes, etc. |
| red marrow | mostly in flat bones and epiphyses. |
| yellow marrow | serves as a "stroma" |
| yellow marrow | adipocytes in medullary cavity of long bones. |
| yellow marrow | macrophages |
| yellow marrow | osteoclasts, osteoblasts |
| yellow marrow | fibroblasts |
| red | at birth, all marrow is __ |
| red | if much blood loss in adult, yellow is converted back to __ |
| ossification | fibrous membranes or hyaline cartilage is replaced with bone matrix. |
| longitudinal growth | occurs at epiphyseal plate. |
| longitudinal growth | cartilage cells divide/die/filled with Ca(calcium) |
| appositional growth | deposition beneath periosteum. |
| appositional growth | degradation beneath endosteum. |
| remodeling | hormonal, mechanical, age. |
| spiral fracture | bone twisted to make break. |
| oblique fracture | at an angle, clean break at angle. |
| comminuted | bones shatter. |
| greenstick | doesn't break all the way through. |
| compound | goes through the skin. |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.