---
title: HumanHandPoseObservation.JointName.thumbCMC
framework: vision
role: symbol
role_heading: Case
path: vision/humanhandposeobservation/jointname/thumbcmc
---

# HumanHandPoseObservation.JointName.thumbCMC

A joint name that represents the thumb’s carpometacarpal (CMC) joint.

## Declaration

```swift
case thumbCMC
```

## See Also

### Getting the thumb finger joint name

- [HumanHandPoseObservation.JointName.thumbIP](vision/humanhandposeobservation/jointname/thumbip.md)
- [HumanHandPoseObservation.JointName.thumbMP](vision/humanhandposeobservation/jointname/thumbmp.md)
- [HumanHandPoseObservation.JointName.thumbTip](vision/humanhandposeobservation/jointname/thumbtip.md)