Fig. 1: The Skeletal System (from eMind Pig)

Name the bone indicated by #17.

Question

Fig. 1: The Skeletal System (from eMind Pig)

Name the bone indicated by #17.

BlackTom AI · Accepted Answer

To determine which bone is indicated by #17, it's helpful to review what each labeled region in the diagram represents and where the sternum sits in the skeletal layout.
Option 1: Mandible — This is the lower jaw bone. It would be located at the front of the skull, not near the central chest where #17 is positioned. The mandible is typically labeled near the head, away from the rib cage.
Option 2: Skull — The skull includes the cranium and face bones; it encases the brain and is located at the anterior/cephalic end of the animal, not in the thoracic region. The label #17 is clearly not part of the skull.
Option 3: Cervical Vertebrae — These are the neck bones that form the upper portion of the spine. They run between the skull and the thoracic region. The label #17 is not in the neck area.
Option 4: Thoracic Vertebrae — These are the vertebrae that correspond to the chest region, giving attachment points for ribs. While this region is near the rib cage, the numbering here typically corresponds to the ribs themselves or associated structures rather than the sternum.
Option 5: Lumbar Vertebrae — These are the lower-back spine bones, far posterior to the chest area. They do not correspond to the central chest where the sternum sits.
Option 6: Sacrum — A fused set of vertebrae at the pelvis base; located far posteriorly, not near the chest midline.
Option 7: Caudal Vertebrae — Tail vertebrae; located at the rear end of the skeleton, not near the chest.
Option 8: Pelvis — The hip bones form the pelvis; these would be located around the hind limb connection, not on the midventral chest line where the sternum is.
Option 9: Femur — The thigh bone; located in the hind limb, not in the chest midline.
Option 10: Patella — The kneecap; part of the hind limb, not in the chest area.
Option 11: Tibia — Shin bone; in the hind leg, not near the sternum.
Option 12: Fibula — The other leg bone; also in the hind limb, not at the chest.
Option 13: Tarsals — Ankle bones; part of the hind limb, not in the chest.
Option 14: Metatarsals — Foot bones; again in the hind limb.
Option 15: Phalanges — Toes; these are distal foot bones, not chest region.
Option 16: Ribs — The rib bones form the thoracic cage and connect to the sternum ventrally, but the label #17 is not on a rib itself in this diagram.
Option 17: Sternum — The sternum (breastbone) is the central ventral bone to which the ribs attach, located along the midline of the chest. In this diagram, #17 corresponds to the sternum region, consistent with its position along the ventral chest where ribs meet the midline.
Option 18: Scapula — The shoulder blade; located laterally at the shoulder, not along the ventral midline of the chest where the sternum lies.
Option 19: Humerus — The upper arm bone; located in the forelimb, not the chest midline.
Option 20: Radius — Forearm bone; located in the limb, not chest.
Option 21: Ulna — Forearm bone; located in the limb, not chest.
Option 22: Carpals — Wrist bones; located at the distal front limb, not chest midline.
Option 23: Metacarpals — Hand bones; located in the limb, not chest.
Option 24: (If present) Additional small bones would also be in the limbs or digits, not the sternum.
In summary, the sternum is the central chest bone that the ribs articulate with along the ventral midline, which matches the typical anatomical position of label #17 in this skeletal figure. The other options correspond to bones in the skull, neck, spine, pelvis, limbs, or digits and do not align with the ventral thoracic location of #17.

W25 BIOL D006A 02Y Form/Funct In The Biolgcl Wrld Bone Quiz

Fig. 1: The Skeletal System (from eMind Pig) Name the bone indicated by #17.

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