Question

Write True or False against each statement :
1. The pectoral girdles support the bones of arms.
2. Muscles are attached to the bones by ligaments
3. Cavity is the hollow shape inside the brain box.
4. Worms do not have bones.
5. The skull protects the brain.​

Answer 1

Answer:

1. ᴛʀᴜᴇ
2. ᴛʀᴜᴇ
3. ꜰᴀʟꜱᴇ
4. ᴛʀᴜᴇ
5. ꜰᴀʟꜱᴇ

Answer 2

Answer:

abduction

when a bone moves away from the midline of the body

actin

globular contractile protein that interacts with myosin for muscle contraction

appendicular skeleton

composed of the bones of the upper limbs, which function to grasp and manipulate objects, and the lower limbs, which permit locomotion

articulation

any place where two bones are joined

auditory ossicle

(also, middle ear) transduces sounds from the air into vibrations in the fluid-filled cochlea

axial skeleton

forms the central axis of the body and includes the bones of the skull, the ossicles of the middle ear, the hyoid bone of the throat, the vertebral column, and the thoracic cage (ribcage)

bone remodeling

replacement of old bone tissue by new bone tissue

bone

(also, osseous tissue) connective tissue that constitutes the endoskeleton

carpus

eight bones that comprise the wrist

clavicle

S-shaped bone that positions the arms laterally

compact bone

forms the hard external layer of all bones

coxal bone

hip bone

cranial bone

one of eight bones that form the cranial cavity that encloses the brain and serves as an attachment site for the muscles of the head and neck

diaphysis

central shaft of bone, contains bone marrow in a marrow cavity

endoskeleton

skeleton of living cells that produce a hard, mineralized tissue located within the soft tissue of organisms

epiphyseal plate

region between the diaphysis and epiphysis that is responsible for the lengthwise growth of long bones

epiphysis

rounded end of bone, covered with articular cartilage and filled with red bone marrow, which produces blood cells

exoskeleton

a secreted cellular product external skeleton that consists of a hard encasement on the surface of an organism

extension

movement in which the angle between the bones of a joint increases; opposite of flexion

facial bone

one of the 14 bones that form the face; provides cavities for the sense organs (eyes, mouth, and nose) and attachment points for facial muscles