Lab (Week 8): Skeletal System
Cartilage cells are: -fibrocytes -osteocytes -chondrocytes
Chondrocytes: They lack blood vessels, so slow to heal.
Osteoclasts increase/decrease blood calcium levels: -decrease -do not affect -increase
increase
This type of connective tissue connects bone to bone? -areolar connective tissue -ligaments -muscles -tendons
ligaments
Fluid filled sacs in synovial joints are called: -Synovia -Menisci -Bursae
Bursae: Fluid filled sacs that cushions certain joints & reduce friction between tendons & ligaments.
What disorders of the skeletal system have Inflammation of bursa? -Bursitis -Osteoporosis -Fracture
Bursitis: Inflammation of bursa.
What has Dense mineralized outer layer? -Compact bone -Spongy bone
Compact bone: Dense mineralized outer layer.
Osteoblasts increase/decrease blood calcium levels: -Increase -Decrease
Decrease
Growth hormone directly stimulates the growth of the _________ plate and bone growth during childhood. -Epidermal -Parathyroidal -Diaphyseal -Epiphyseal
Epiphyseal
What disorders of the skeletal system have broken bone? -Tendonitis -Fracture -Bursitis
Fracture: Broken bone
Immature cells that secrete calcified material (bone forming cells) are: -Osteoclasts -Osteocytes -Osteoblasts
Osteoblasts: bone forming cells. -Cells that secrete calcified material that surrounds the cells. -Calcium is removed from blood & put into bones, reducing blood calcium levels.
This type of connective tissue connects bone to bone: -Ligaments -Tendons
Ligaments: attach bone to bone. Connective tissue that connects bone to bone.
Formation of bones is called: -Osteofication -Ossification -Condrofication
Ossification
What disorders of the skeletal system have Deterioration of cartilage @ joints? -Sprains -Bursitis -Osteoarthritis
Osteoarthritis: Deterioration of cartilage @ joints.
Are building the matrix up are called? -Osteoclasts -Osteoblasts
Osteoblasts: are building the matrix up.
What has Bone absorbing cells; chaos. These are bones cells on the outer edge of bones. They release enzymes that eat away @ the bone, releasing minerals into the blood, increasing calcium levels in blood: -Osteoclasts -Osteoblasts -Osteocytes
Osteoclasts: Bone absorbing cells; chaos. -These are bones cells on the outer edge of bones. -They release enzymes that eat away @ the bone, releasing minerals, increasing calcium levels in blood.
Removing the bone matrix are called? -Osteoclasts -Osteoblasts
Osteoclasts: are removing the bone matrix.
What disorders of the skeletal system have When more bone is reabsorbed than is formed, causing bones to become weak & brittle? -Bursitis -Osteoporosis -Fracture
Osteoporosis: When more bone is reabsorbed than is formed, causing bones to become weak & brittle.
This hormone increases blood calcium? -Calcitonin -PTH -Estrogen -Growth hormone
PTH
Which hormone targets osteoclasts? -Calcitonin -PTH
PTH
This hormone increases blood calcium: -Growth hormone -Calcitonin -Parathyroid hormone
Parathyroid hormone: Produced by the parathyroid gland - accelerates calcium's removal from bone, increasing blood calcium.
The fibrous outer covering of the bone, contains nerves, blood vessels, lymphatic vessels that help in bone repair and growth: -Periosteum -Tendons -Compact bone
Periosteum: Fibrous outer covering of the bone, contains nerves, blood vessels, lymphatic vessels. -Function: Bone repair & growth.
What disorders of the skeletal system have Chronic inflammatory disorder of the joints? -Bursitis -Rheumatoid Arthritis -Osteoarthritis
Rheumatoid Arthritis: Chronic inflammatory disorder of the joints.
What has Inner layer w/ open network filled w/ marrow? -Compact bone -Spongy bone
Spongy bone: Inner layer w/ open network filled w/ marrow.
What disorders of the skeletal system have When ligaments are torn/stretched? -Sprains -Bursitis -Osteoarthritis
Sprains: When ligaments are torn/stretched.
What disorders of the skeletal system have Inflammation of tendon sheath? -Tendonitis -Fracture -Bursitis
Tendonitis: Inflammation of tendon sheath.
Calcitonin is produced by the ______ gland: -Parathyroid -Thyroid -Anterior pituitary -Hypothalamus
Thyroid Calcitonin: Produced by the thyroid gland- a hormone that decreases blood calcium levels, deposits calcium into the bone.
Which hormone ensures that the skeleton grow with the proper proportions ? -Growth hormone -Calcitonin -Parathyroid hormone -Vitamin D -Thyroid hormones
Thyroid hormones
Which hormone ensures that the skeleton grow with the proper proportions? -Vitamin D -Thyroid hormones -Parathyroid hormone -Growth hormone
Thyroid hormones
Which hormone helps you to absorb calcium from your digestive system? -Growth hormone -Vitamin D -Thyroid hormones -Vitamin E -Vitamin C
Vitamin D: Converted to a hormone causing the intestines to absorb calcium.